Oracle PL/SQL/Table/Temporary Table
Содержание
- 1 Create global temporary table from existing table
- 2 create global temporary table on commit delete rows
- 3 Create global temporary table with "on commit delete rows" option
- 4 Create global temporary table working_emps on commit preserve rows
- 5 Create temporary table
- 6 drop global temporary table
- 7 Insert data into the temporary table.
- 8 Insert into a temporary with select statement
- 9 ORA-14452: attempt to create, alter or drop an index on temporary table already in use
- 10 Temporary table on commit preserce and delete
- 11 Temporary tables cannot be forced into logging.
- 12 Temporary tables do not support foreign keys
- 13 Temporary tables support primary keys.
- 14 truncate a global temporary table
- 15 Update a TEMPORARY TABLE and check the table it based on
- 16 Using Temporary Tables
- 17 You cannot alter a temporary table to change its data duration.(drop and recreate)
Create global temporary table from existing table
<source lang="sql">
SQL> -- create demo table SQL> create table Employee(
2 ID VARCHAR2(4 BYTE) NOT NULL, 3 First_Name VARCHAR2(10 BYTE), 4 Last_Name VARCHAR2(10 BYTE), 5 Start_Date DATE, 6 End_Date DATE, 7 Salary Number(8,2), 8 City VARCHAR2(10 BYTE), 9 Description VARCHAR2(15 BYTE) 10 ) 11 /
Table created. SQL> SQL> -- prepare data SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values ("01","Jason", "Martin", to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto", "Programmer")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("02","Alison", "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("03","James", "Smith", to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("04","Celia", "Rice", to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("05","Robert", "Black", to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("06","Linda", "Green", to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York", "Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("07","David", "Larry", to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York", "Manager")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("08","James", "Cat", to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
3 /
1 row created. SQL> SQL> SQL> SQL> -- display data in the table SQL> select * from Employee
2 /
ID FIRST_NAME LAST_NAME START_DAT END_DATE SALARY CITY DESCRIPTION
---------- ---------- --------- --------- ---------- ---------- ---------------
01 Jason Martin 25-JUL-96 25-JUL-06 1234.56 Toronto Programmer 02 Alison Mathews 21-MAR-76 21-FEB-86 6661.78 Vancouver Tester 03 James Smith 12-DEC-78 15-MAR-90 6544.78 Vancouver Tester 04 Celia Rice 24-OCT-82 21-APR-99 2344.78 Vancouver Manager 05 Robert Black 15-JAN-84 08-AUG-98 2334.78 Vancouver Tester 06 Linda Green 30-JUL-87 04-JAN-96 4322.78 New York Tester 07 David Larry 31-DEC-90 12-FEB-98 7897.78 New York Manager 08 James Cat 17-SEP-96 15-APR-02 1232.78 Vancouver Tester 8 rows selected. SQL> SQL> SQL> SQL> create global temporary table employee_tab
2 on commit preserve rows 3 as select * from employee;
Table created. SQL> SQL> SQL> select * from employee_tab; ID FIRST_NAME LAST_NAME START_DAT END_DATE SALARY CITY DESCRIPTION
---------- ---------- --------- --------- ---------- ---------- ---------------
01 Jason Martin 25-JUL-96 25-JUL-06 1234.56 Toronto Programmer 02 Alison Mathews 21-MAR-76 21-FEB-86 6661.78 Vancouver Tester 03 James Smith 12-DEC-78 15-MAR-90 6544.78 Vancouver Tester 04 Celia Rice 24-OCT-82 21-APR-99 2344.78 Vancouver Manager 05 Robert Black 15-JAN-84 08-AUG-98 2334.78 Vancouver Tester 06 Linda Green 30-JUL-87 04-JAN-96 4322.78 New York Tester 07 David Larry 31-DEC-90 12-FEB-98 7897.78 New York Manager 08 James Cat 17-SEP-96 15-APR-02 1232.78 Vancouver Tester 8 rows selected. SQL> SQL> -- clean the table SQL> drop table Employee
2 /
Table dropped. SQL> SQL> SQL>
</source>
create global temporary table on commit delete rows
<source lang="sql">
SQL> SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
2 ENAME VARCHAR2(10), 3 JOB VARCHAR2(9), 4 MGR NUMBER(4), 5 HIREDATE DATE, 6 SAL NUMBER(7, 2), 7 COMM NUMBER(7, 2), 8 DEPTNO NUMBER(2));
Table created. SQL> SQL> INSERT INTO EMP VALUES (7369, "SMITH", "CLERK", 7902, TO_DATE("17-DEC-1980", "DD-MON-YYYY"), 800, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7499, "ALLEN", "SALESMAN", 7698, TO_DATE("20-FEB-1981", "DD-MON-YYYY"), 1600, 300, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7521, "WARD", "SALESMAN", 7698, TO_DATE("22-FEB-1981", "DD-MON-YYYY"), 1250, 500, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7566, "JONES", "MANAGER", 7839, TO_DATE("2-APR-1981", "DD-MON-YYYY"), 2975, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7654, "MARTIN", "SALESMAN", 7698,TO_DATE("28-SEP-1981", "DD-MON-YYYY"), 1250, 1400, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7698, "BLAKE", "MANAGER", 7839,TO_DATE("1-MAY-1981", "DD-MON-YYYY"), 2850, NULL, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7782, "CLARK", "MANAGER", 7839,TO_DATE("9-JUN-1981", "DD-MON-YYYY"), 2450, NULL, 10); 1 row created. SQL> INSERT INTO EMP VALUES (7788, "SCOTT", "ANALYST", 7566,TO_DATE("09-DEC-1982", "DD-MON-YYYY"), 3000, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7839, "KING", "PRESIDENT", NULL,TO_DATE("17-NOV-1981", "DD-MON-YYYY"), 5000, NULL, 10); 1 row created. SQL> INSERT INTO EMP VALUES (7844, "TURNER", "SALESMAN", 7698,TO_DATE("8-SEP-1981", "DD-MON-YYYY"), 1500, 0, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7876, "ADAMS", "CLERK", 7788,TO_DATE("12-JAN-1983", "DD-MON-YYYY"), 1100, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7900, "JAMES", "CLERK", 7698,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 950, NULL, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7902, "FORD", "ANALYST", 7566,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 3000, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7934, "MILLER", "CLERK", 7782,TO_DATE("23-JAN-1982", "DD-MON-YYYY"), 1300, NULL, 10); 1 row created. SQL> SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- --------- ---------- --------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7788 SCOTT ANALYST 7566 09-DEC-82 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 12-JAN-83 1100 20
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- --------- ---------- --------- ---------- ---------- ----------
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected. SQL> SQL> create global temporary table transaction_tab
2 on commit delete rows 3 as select * from emp where 1 = 0;
SQL> SQL> SQL> insert into transaction_tab
2 select * from emp;
14 rows created. SQL> SQL> select count(*) from transaction_tab;
COUNT(*)
14
SQL> SQL> commit; Commit complete. SQL> SQL> select count(*) from transaction_tab;
COUNT(*)
0
SQL> SQL> drop table emp; Table dropped. SQL>
</source>
Create global temporary table with "on commit delete rows" option
<source lang="sql">
SQL> SQL> SQL> -- create demo table SQL> create table Employee(
2 ID VARCHAR2(4 BYTE) NOT NULL, 3 First_Name VARCHAR2(10 BYTE), 4 Last_Name VARCHAR2(10 BYTE), 5 Start_Date DATE, 6 End_Date DATE, 7 Salary Number(8,2), 8 City VARCHAR2(10 BYTE), 9 Description VARCHAR2(15 BYTE) 10 ) 11 /
Table created. SQL> SQL> -- prepare data SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values ("01","Jason", "Martin", to_date("19960725","YYYYMMDD"), to_date("20060725","YYYYMMDD"), 1234.56, "Toronto", "Programmer")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("02","Alison", "Mathews", to_date("19760321","YYYYMMDD"), to_date("19860221","YYYYMMDD"), 6661.78, "Vancouver","Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("03","James", "Smith", to_date("19781212","YYYYMMDD"), to_date("19900315","YYYYMMDD"), 6544.78, "Vancouver","Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("04","Celia", "Rice", to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2344.78, "Vancouver","Manager")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("05","Robert", "Black", to_date("19840115","YYYYMMDD"), to_date("19980808","YYYYMMDD"), 2334.78, "Vancouver","Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("06","Linda", "Green", to_date("19870730","YYYYMMDD"), to_date("19960104","YYYYMMDD"), 4322.78,"New York", "Tester")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("07","David", "Larry", to_date("19901231","YYYYMMDD"), to_date("19980212","YYYYMMDD"), 7897.78,"New York", "Manager")
3 /
1 row created. SQL> insert into Employee(ID, First_Name, Last_Name, Start_Date, End_Date, Salary, City, Description)
2 values("08","James", "Cat", to_date("19960917","YYYYMMDD"), to_date("20020415","YYYYMMDD"), 1232.78,"Vancouver", "Tester")
3 /
1 row created. SQL> SQL> SQL> SQL> -- display data in the table SQL> select * from Employee
2 /
ID FIRST_NAME LAST_NAME START_DAT END_DATE SALARY CITY DESCRIPTION
---------- ---------- --------- --------- ---------- ---------- ---------------
01 Jason Martin 25-JUL-96 25-JUL-06 1234.56 Toronto Programmer 02 Alison Mathews 21-MAR-76 21-FEB-86 6661.78 Vancouver Tester 03 James Smith 12-DEC-78 15-MAR-90 6544.78 Vancouver Tester 04 Celia Rice 24-OCT-82 21-APR-99 2344.78 Vancouver Manager 05 Robert Black 15-JAN-84 08-AUG-98 2334.78 Vancouver Tester 06 Linda Green 30-JUL-87 04-JAN-96 4322.78 New York Tester 07 David Larry 31-DEC-90 12-FEB-98 7897.78 New York Manager 08 James Cat 17-SEP-96 15-APR-02 1232.78 Vancouver Tester 8 rows selected. SQL> SQL> SQL> create global temporary table transaction_tab
2 on commit delete rows 3 as select * 4 from employee;
Table created. SQL> SQL> select * from transaction_tab; no rows selected SQL> SQL> commit; Commit complete. SQL> SQL> select * from transaction_tab; no rows selected SQL> SQL> SQL> -- clean the table SQL> drop table Employee
2 /
Table dropped. SQL> SQL>
</source>
Create global temporary table working_emps on commit preserve rows
<source lang="sql">
SQL> SQL> create table emp(
2 emp_id integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,shortZipCode varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,company_name varchar2(50));
Table created. SQL> SQL> SQL> insert into emp(emp_id,lastname,firstname,midinit,street,city,state,zip,shortZipCode,area_code,phone,company_name)values
2 (1,"Jones","Joe","J","1 Ave","New York","NY","11202","1111","212", "221-4333","Big Company");
1 row created. SQL> insert into emp(emp_id,lastname,firstname,midinit,street,city,state,zip,shortZipCode,area_code,phone,company_name)values
2 (2,"Smith","Sue","J","1 Street","New York","NY","11444","1111","212", "436-6773","Little Company");
1 row created. SQL> insert into emp(emp_id,lastname,firstname,midinit,street,city,state,zip,shortZipCode,area_code,phone,company_name)values
2 (3,"X","Peggy","J","1 Drive","New York","NY","45502","2222","212", "234-4444","Medium Company");
1 row created. SQL> SQL> SQL> create global temporary table working_emps
2 on commit preserve rows 3 as select * from emp;
SQL> SQL> select *
2 from working_emps; EMP_ID LASTNAME FIRSTNAME M STREET CITY ST ZIP SHOR ARE PHONE COMPANY_NAME
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- --------------------------------------------------
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
12 rows selected. SQL> SQL> select * from working_emps;
EMP_ID LASTNAME FIRSTNAME M STREET CITY ST ZIP SHOR ARE PHONE COMPANY_NAME
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- --------------------------------------------------
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
1 Jones Joe J 1 Ave New York NY 11202 1111 212 221-4333 Big Company
2 Smith Sue J 1 Street New York NY 11444 1111 212 436-6773 Little Company
3 X Peggy J 1 Drive New York NY 45502 2222 212 234-4444 Medium Company
12 rows selected. SQL> SQL> insert into working_emps
2 select * from emp ;
3 rows created. SQL> SQL> drop table working_emps; drop table working_emps
*
ERROR at line 1: ORA-14452: attempt to create, alter or drop an index on temporary table already in use
SQL> drop table emp; Table dropped. SQL>
</source>
Create temporary table
<source lang="sql">
SQL> SQL> -- Global Temporary tables SQL> SQL> CREATE GLOBAL TEMPORARY TABLE supplier
2 ( supplier_id numeric(10) not null, 3 supplier_name varchar2(50) not null, 4 contact_name varchar2(50) 5 ) 6 /
SQL> SQL> desc supplier;
Name Null? Type ----------------------------------------------------------------------------------------------------- -------- -------------------------------------------------------------------- SUPPLIER_ID NOT NULL NUMBER(10) SUPPLIER_NAME NOT NULL VARCHAR2(50) CONTACT_NAME VARCHAR2(50)
SQL> SQL> drop table supplier; SQL> SQL>
</source>
drop global temporary table
<source lang="sql">
SQL> SQL> CREATE TABLE employees
2 ( employee_id number(10) not null, 3 last_name varchar2(50) not null, 4 email varchar2(30), 5 hire_date date, 6 job_id varchar2(30), 7 department_id number(10), 8 salary number(6), 9 manager_id number(6) 10 );
Table created. SQL> SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary,department_id ,manager_id)
2 values ( 1001, "Lawson", "lawson@g.ru", "01-JAN-2002","MGR", 30000,1 ,1004);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id ,manager_id)
2 values ( 1002, "Wells", "wells@g.ru", "01-JAN-2002", "DBA", 20000,2, 1005 );
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id ,manager_id)
2 values( 1003, "Bliss", "bliss@g.ru", "01-JAN-2002", "PROG", 24000,3 ,1004);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1004, "Kyte", "tkyte@a.ru", SYSDATE-3650, "MGR",25000 ,4, 1005);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1005, "Viper", "sdillon@a .ru", SYSDATE, "PROG", 20000, 1, 1006);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id,manager_id)
2 values( 1006, "Beck", "clbeck@g.ru", SYSDATE, "PROG", 20000, 2, null);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1007, "Java", "java01@g.ru", SYSDATE, "PROG", 20000, 3, 1006);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1008, "Oracle", "oracle1@g.ru", SYSDATE, "DBA", 20000, 4, 1006);
1 row created. SQL> SQL> select * from employees; EMPLOYEE_ID LAST_NAME EMAIL HIRE_DATE JOB_ID DEPARTMENT_ID SALARY MANAGER_ID
-------------------------------------------------- ------------------------------ --------- ------------------------------ ------------- ---------- ----------
1001 Lawson lawson@g.ru 01-JAN-02 MGR 1 30000 1004
1002 Wells wells@g.ru 01-JAN-02 DBA 2 20000 1005
1003 Bliss bliss@g.ru 01-JAN-02 PROG 3 24000 1004
1004 Kyte tkyte@a.ru 14-JUN-98 MGR 4 25000 1005
1005 Viper sdillon@a .ru 11-JUN-08 PROG 1 20000 1006
1006 Beck clbeck@g.ru 11-JUN-08 PROG 2 20000
1007 Java java01@g.ru 11-JUN-08 PROG 3 20000 1006
1008 Oracle oracle1@g.ru 11-JUN-08 DBA 4 20000 1006
8 rows selected. SQL> SQL> SQL> create global temporary table session_tab
2 on commit preserve rows 3 as select * from employees;
SQL> SQL> SQL> drop table session_tab; Table dropped. SQL> SQL> SQL> drop table employees; Table dropped. SQL> SQL>
</source>
Insert data into the temporary table.
<source lang="sql">
SQL> SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> select * from employee;
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
1 Anderson Nancy N 33 Ave London NY 11111 1111 212 234-1111 4
21-MAR-1927 00:00:00 01-FEB-1947 00:00:00 Sales Manager 2 100 10 40000
2 Last First F 12 Ave Paris CA 22222 2222 221 867-2222 8
14-FEB-1976 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 1 100 10 10000
3 Wash Georgia G 1 Street14 Barton NJ 33333 3333 214 340-3333 12
02-JUL-1977 00:00:00 21-APR-2004 00:00:00 Designer 1 2 100 10 40000
4 Bush Dave D 56 Street Island RI 44444 4444 215 777-4444 22
15-MAY-1945 00:00:00 02-AUG-1975 00:00:00 Designer 1 2 100 10 40000
5 Will Robin W 56 Street Island MA 55555 5555 216 777-5555 25
10-DEC-1980 00:00:00 02-AUG-2007 00:00:00 Designer 1 5 100 10 40000
6 Pete Mona M 13 Ave York MO 66666 6666 217 111-6666 9
14-FEB-1966 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 5 100 10 40000
7 Roke John J 67 Ave New York BC 77777 7777 218 122-7777 10
14-JUN-1955 00:00:00 15-MAR-1975 00:00:00 Accountant 3 2 100 10 40000
8 Horry Tedi T 1236 Lane Newton NY 88888 8888 219 222-8888 13
10-JUN-1955 00:00:00 15-AUG-1985 00:00:00 Sales Representative 3 2 100 10 50000
9 Bar Candi C 400 East Street Yorken NY 99999 9999 220 321-9999 12
10-OCT-1933 00:00:00 15-JAN-1969 00:00:00 Sales Representative 3 5 100 10 35000
9 rows selected. SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 AS SELECT * FROM employee;
Table created. SQL> SQL> INSERT INTO temp_emp SELECT * FROM employee; 9 rows created. SQL> select * from temp_emp;
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
1 Anderson Nancy N 33 Ave London NY 11111 1111 212 234-1111 4
21-MAR-1927 00:00:00 01-FEB-1947 00:00:00 Sales Manager 2 100 10 40000
2 Last First F 12 Ave Paris CA 22222 2222 221 867-2222 8
14-FEB-1976 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 1 100 10 10000
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
3 Wash Georgia G 1 Street14 Barton NJ 33333 3333 214 340-3333 12
02-JUL-1977 00:00:00 21-APR-2004 00:00:00 Designer 1 2 100 10 40000
4 Bush Dave D 56 Street Island RI 44444 4444 215 777-4444 22
15-MAY-1945 00:00:00 02-AUG-1975 00:00:00 Designer 1 2 100 10 40000
5 Will Robin W 56 Street Island MA 55555 5555 216 777-5555 25
10-DEC-1980 00:00:00 02-AUG-2007 00:00:00 Designer 1 5 100 10 40000
6 Pete Mona M 13 Ave York MO 66666 6666 217 111-6666 9
14-FEB-1966 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 5 100 10 40000
7 Roke John J 67 Ave New York BC 77777 7777 218 122-7777 10
14-JUN-1955 00:00:00 15-MAR-1975 00:00:00 Accountant 3 2 100 10 40000
8 Horry Tedi T 1236 Lane Newton NY 88888 8888 219 222-8888 13
10-JUN-1955 00:00:00 15-AUG-1985 00:00:00 Sales Representative 3 2 100 10 50000
9 Bar Candi C 400 East Street Yorken NY 99999 9999 220 321-9999 12
10-OCT-1933 00:00:00 15-JAN-1969 00:00:00 Sales Representative 3 5 100 10 35000
9 rows selected. SQL> SQL> commit; Commit complete. SQL> select * from temp_emp; no rows selected SQL> commit; Commit complete. SQL> SQL> drop table employee; Table dropped. SQL> drop table temp_emp; Table dropped. SQL> --
</source>
Insert into a temporary with select statement
<source lang="sql">
SQL> SQL> CREATE TABLE employees
2 ( employee_id number(10) not null, 3 last_name varchar2(50) not null, 4 email varchar2(30), 5 hire_date date, 6 job_id varchar2(30), 7 department_id number(10), 8 salary number(6), 9 manager_id number(6) 10 );
Table created. SQL> SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary,department_id ,manager_id)
2 values ( 1001, "Lawson", "lawson@g.ru", "01-JAN-2002","MGR", 30000,1 ,1004);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id ,manager_id)
2 values ( 1002, "Wells", "wells@g.ru", "01-JAN-2002", "DBA", 20000,2, 1005 );
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id ,manager_id)
2 values( 1003, "Bliss", "bliss@g.ru", "01-JAN-2002", "PROG", 24000,3 ,1004);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1004, "Kyte", "tkyte@a.ru", SYSDATE-3650, "MGR",25000 ,4, 1005);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1005, "Viper", "sdillon@a .ru", SYSDATE, "PROG", 20000, 1, 1006);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id,manager_id)
2 values( 1006, "Beck", "clbeck@g.ru", SYSDATE, "PROG", 20000, 2, null);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1007, "Java", "java01@g.ru", SYSDATE, "PROG", 20000, 3, 1006);
1 row created. SQL> SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
2 values( 1008, "Oracle", "oracle1@g.ru", SYSDATE, "DBA", 20000, 4, 1006);
1 row created. SQL> SQL> select * from employees; EMPLOYEE_ID LAST_NAME EMAIL HIRE_DATE JOB_ID DEPARTMENT_ID SALARY MANAGER_ID
-------------------------------------------------- ------------------------------ --------- ------------------------------ ------------- ---------- ----------
1001 Lawson lawson@g.ru 01-JAN-02 MGR 1 30000 1004
1002 Wells wells@g.ru 01-JAN-02 DBA 2 20000 1005
1003 Bliss bliss@g.ru 01-JAN-02 PROG 3 24000 1004
1004 Kyte tkyte@a.ru 14-JUN-98 MGR 4 25000 1005
1005 Viper sdillon@a .ru 11-JUN-08 PROG 1 20000 1006
1006 Beck clbeck@g.ru 11-JUN-08 PROG 2 20000
1007 Java java01@g.ru 11-JUN-08 PROG 3 20000 1006
1008 Oracle oracle1@g.ru 11-JUN-08 DBA 4 20000 1006
8 rows selected. SQL> SQL> SQL> create global temporary table transaction_tab
2 on commit delete rows 3 as select * from employees where 1 = 0;
Table created. SQL> SQL> insert into transaction_tab select * from employees; 8 rows created. SQL> SQL> SQL> select count(*) from transaction_tab;
COUNT(*)
8
SQL> SQL> commit; Commit complete. SQL> SQL> drop table employees; Table dropped. SQL> SQL> drop table transaction_tab; Table dropped. SQL> SQL>
</source>
ORA-14452: attempt to create, alter or drop an index on temporary table already in use
<source lang="sql">
SQL> SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 ON COMMIT PRESERVE ROWS 3 AS SELECT * FROM employee;
Table created. SQL> SQL> select * from temp_emp;
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
1 Anderson Nancy N 33 Ave London NY 11111 1111 212 234-1111 4
21-MAR-1927 00:00:00 01-FEB-1947 00:00:00 Sales Manager 2 100 10 40000
2 Last First F 12 Ave Paris CA 22222 2222 221 867-2222 8
14-FEB-1976 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 1 100 10 10000
3 Wash Georgia G 1 Street14 Barton NJ 33333 3333 214 340-3333 12
02-JUL-1977 00:00:00 21-APR-2004 00:00:00 Designer 1 2 100 10 40000
4 Bush Dave D 56 Street Island RI 44444 4444 215 777-4444 22
15-MAY-1945 00:00:00 02-AUG-1975 00:00:00 Designer 1 2 100 10 40000
5 Will Robin W 56 Street Island MA 55555 5555 216 777-5555 25
10-DEC-1980 00:00:00 02-AUG-2007 00:00:00 Designer 1 5 100 10 40000
6 Pete Mona M 13 Ave York MO 66666 6666 217 111-6666 9
14-FEB-1966 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 5 100 10 40000
7 Roke John J 67 Ave New York BC 77777 7777 218 122-7777 10
14-JUN-1955 00:00:00 15-MAR-1975 00:00:00 Accountant 3 2 100 10 40000
8 Horry Tedi T 1236 Lane Newton NY 88888 8888 219 222-8888 13
10-JUN-1955 00:00:00 15-AUG-1985 00:00:00 Sales Representative 3 2 100 10 50000
9 Bar Candi C 400 East Street Yorken NY 99999 9999 220 321-9999 12
10-OCT-1933 00:00:00 15-JAN-1969 00:00:00 Sales Representative 3 5 100 10 35000
9 rows selected. SQL> SQL> drop table employee; Table dropped. SQL> drop table temp_emp; drop table temp_emp
*
ERROR at line 1: ORA-14452: attempt to create, alter or drop an index on temporary table already in use
SQL> SQL> --
</source>
Temporary table on commit preserce and delete
<source lang="sql">
SQL> SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
2 ENAME VARCHAR2(10), 3 JOB VARCHAR2(9), 4 MGR NUMBER(4), 5 HIREDATE DATE, 6 SAL NUMBER(7, 2), 7 COMM NUMBER(7, 2), 8 DEPTNO NUMBER(2));
Table created. SQL> SQL> INSERT INTO EMP VALUES (7369, "SMITH", "CLERK", 7902, TO_DATE("17-DEC-1980", "DD-MON-YYYY"), 800, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7499, "ALLEN", "SALESMAN", 7698, TO_DATE("20-FEB-1981", "DD-MON-YYYY"), 1600, 300, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7521, "WARD", "SALESMAN", 7698, TO_DATE("22-FEB-1981", "DD-MON-YYYY"), 1250, 500, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7566, "JONES", "MANAGER", 7839, TO_DATE("2-APR-1981", "DD-MON-YYYY"), 2975, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7654, "MARTIN", "SALESMAN", 7698,TO_DATE("28-SEP-1981", "DD-MON-YYYY"), 1250, 1400, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7698, "BLAKE", "MANAGER", 7839,TO_DATE("1-MAY-1981", "DD-MON-YYYY"), 2850, NULL, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7782, "CLARK", "MANAGER", 7839,TO_DATE("9-JUN-1981", "DD-MON-YYYY"), 2450, NULL, 10); 1 row created. SQL> INSERT INTO EMP VALUES (7788, "SCOTT", "ANALYST", 7566,TO_DATE("09-DEC-1982", "DD-MON-YYYY"), 3000, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7839, "KING", "PRESIDENT", NULL,TO_DATE("17-NOV-1981", "DD-MON-YYYY"), 5000, NULL, 10); 1 row created. SQL> INSERT INTO EMP VALUES (7844, "TURNER", "SALESMAN", 7698,TO_DATE("8-SEP-1981", "DD-MON-YYYY"), 1500, 0, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7876, "ADAMS", "CLERK", 7788,TO_DATE("12-JAN-1983", "DD-MON-YYYY"), 1100, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7900, "JAMES", "CLERK", 7698,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 950, NULL, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7902, "FORD", "ANALYST", 7566,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 3000, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7934, "MILLER", "CLERK", 7782,TO_DATE("23-JAN-1982", "DD-MON-YYYY"), 1300, NULL, 10); 1 row created. SQL> SQL> SQL> create global temporary table MyTable_session
2 on commit preserve rows 3 as 4 select * from emp where 1=0 5 /
SQL> insert into MyTable_session select * from emp; 14 rows created. SQL> SQL> SQL> create global temporary table MyTable_transaction
2 on commit delete rows 3 as 4 select * from emp where 1=0 5 /
Table created. SQL> SQL> SQL> insert into MyTable_transaction select * from emp; 14 rows created. SQL> SQL> SQL> select session_cnt, transaction_cnt
2 from ( select count(*) session_cnt from MyTable_session ), 3 ( select count(*) transaction_cnt from MyTable_transaction );
SESSION_CNT TRANSACTION_CNT
---------------
14 14
1 row selected. SQL> SQL> commit; Commit complete. SQL> SQL> select session_cnt, transaction_cnt
2 from ( select count(*) session_cnt from MyTable_session ), 3 ( select count(*) transaction_cnt from MyTable_transaction );
SESSION_CNT TRANSACTION_CNT
---------------
14 0
1 row selected. SQL> SQL> drop table MyTable_session; SQL> SQL> drop table MyTable_transaction; Table dropped. SQL> SQL> drop table emp; Table dropped. SQL> SQL> --
</source>
Temporary tables cannot be forced into logging.
<source lang="sql">
SQL> SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> select * from employee;
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
1 Anderson Nancy N 33 Ave London NY 11111 1111 212 234-1111 4
21-MAR-1927 00:00:00 01-FEB-1947 00:00:00 Sales Manager 2 100 10 40000
2 Last First F 12 Ave Paris CA 22222 2222 221 867-2222 8
14-FEB-1976 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 1 100 10 10000
3 Wash Georgia G 1 Street14 Barton NJ 33333 3333 214 340-3333 12
02-JUL-1977 00:00:00 21-APR-2004 00:00:00 Designer 1 2 100 10 40000
4 Bush Dave D 56 Street Island RI 44444 4444 215 777-4444 22
15-MAY-1945 00:00:00 02-AUG-1975 00:00:00 Designer 1 2 100 10 40000
5 Will Robin W 56 Street Island MA 55555 5555 216 777-5555 25
10-DEC-1980 00:00:00 02-AUG-2007 00:00:00 Designer 1 5 100 10 40000
6 Pete Mona M 13 Ave York MO 66666 6666 217 111-6666 9
14-FEB-1966 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 5 100 10 40000
7 Roke John J 67 Ave New York BC 77777 7777 218 122-7777 10
14-JUN-1955 00:00:00 15-MAR-1975 00:00:00 Accountant 3 2 100 10 40000
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
8 Horry Tedi T 1236 Lane Newton NY 88888 8888 219 222-8888 13
10-JUN-1955 00:00:00 15-AUG-1985 00:00:00 Sales Representative 3 2 100 10 50000
9 Bar Candi C 400 East Street Yorken NY 99999 9999 220 321-9999 12
10-OCT-1933 00:00:00 15-JAN-1969 00:00:00 Sales Representative 3 5 100 10 35000
9 rows selected. SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 AS SELECT * FROM employee;
CREATE GLOBAL TEMPORARY TABLE temp_emp
*
ERROR at line 1: ORA-00955: name is already used by an existing object
SQL> SQL> SQL> ALTER TABLE temp_emp LOGGING; ALTER TABLE temp_emp LOGGING
ERROR at line 1: ORA-14451: unsupported feature with temporary table
SQL> SQL> SQL> drop table employee; Table dropped. SQL> drop table temp_emp; Table dropped. SQL> --
</source>
Temporary tables do not support foreign keys
<source lang="sql">
SQL> SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> select * from employee;
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
1 Anderson Nancy N 33 Ave London NY 11111 1111 212 234-1111 4
21-MAR-1927 00:00:00 01-FEB-1947 00:00:00 Sales Manager 2 100 10 40000
2 Last First F 12 Ave Paris CA 22222 2222 221 867-2222 8
14-FEB-1976 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 1 100 10 10000
3 Wash Georgia G 1 Street14 Barton NJ 33333 3333 214 340-3333 12
02-JUL-1977 00:00:00 21-APR-2004 00:00:00 Designer 1 2 100 10 40000
4 Bush Dave D 56 Street Island RI 44444 4444 215 777-4444 22
15-MAY-1945 00:00:00 02-AUG-1975 00:00:00 Designer 1 2 100 10 40000
5 Will Robin W 56 Street Island MA 55555 5555 216 777-5555 25
10-DEC-1980 00:00:00 02-AUG-2007 00:00:00 Designer 1 5 100 10 40000
6 Pete Mona M 13 Ave York MO 66666 6666 217 111-6666 9
14-FEB-1966 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 5 100 10 40000
7 Roke John J 67 Ave New York BC 77777 7777 218 122-7777 10
14-JUN-1955 00:00:00 15-MAR-1975 00:00:00 Accountant 3 2 100 10 40000
8 Horry Tedi T 1236 Lane Newton NY 88888 8888 219 222-8888 13
10-JUN-1955 00:00:00 15-AUG-1985 00:00:00 Sales Representative 3 2 100 10 50000
9 Bar Candi C 400 East Street Yorken NY 99999 9999 220 321-9999 12
10-OCT-1933 00:00:00 15-JAN-1969 00:00:00 Sales Representative 3 5 100 10 35000
9 rows selected. SQL> SQL> SQL> create table department(
2 dept_no integer primary key 3 ,dept_name varchar(20) not null 4 ,mgr_no integer 5 );
Table created. SQL> SQL> insert into department(dept_no, dept_name, mgr_no)values(1, "Design", 1); 1 row created. SQL> insert into department(dept_no, dept_name, mgr_no)values(2, "Sales", 1); 1 row created. SQL> insert into department(dept_no, dept_name, mgr_no)values(3, "Development", 1); 1 row created. SQL> SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 AS SELECT * FROM employee;
Table created. SQL> SQL> ALTER TABLE temp_emp
2 ADD CONSTRAINT fk_temp_emp_dept 3 FOREIGN KEY (dept_no) 4 REFERENCES department;
ALTER TABLE temp_emp
ERROR at line 1: ORA-14455: attempt to create referential integrity constraint on temporary table
SQL> SQL> drop table temp_emp; Table dropped. SQL> drop table employee; Table dropped. SQL> drop table department; Table dropped. SQL> --
</source>
Temporary tables support primary keys.
<source lang="sql">
SQL> SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> select * from employee;
EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
1 Anderson Nancy N 33 Ave London NY 11111 1111 212 234-1111 4
21-MAR-1927 00:00:00 01-FEB-1947 00:00:00 Sales Manager 2 100 10 40000
2 Last First F 12 Ave Paris CA 22222 2222 221 867-2222 8
14-FEB-1976 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 1 100 10 10000
3 Wash Georgia G 1 Street14 Barton NJ 33333 3333 214 340-3333 12
02-JUL-1977 00:00:00 21-APR-2004 00:00:00 Designer 1 2 100 10 40000
4 Bush Dave D 56 Street Island RI 44444 4444 215 777-4444 22
15-MAY-1945 00:00:00 02-AUG-1975 00:00:00 Designer 1 2 100 10 40000
5 Will Robin W 56 Street Island MA 55555 5555 216 777-5555 25
10-DEC-1980 00:00:00 02-AUG-2007 00:00:00 Designer 1 5 100 10 40000
6 Pete Mona M 13 Ave York MO 66666 6666 217 111-6666 9
14-FEB-1966 00:00:00 15-MAR-1985 00:00:00 Sales Clerk 2 5 100 10 40000
7 Roke John J 67 Ave New York BC 77777 7777 218 122-7777 10
14-JUN-1955 00:00:00 15-MAR-1975 00:00:00 Accountant 3 2 100 10 40000
8 Horry Tedi T 1236 Lane Newton NY 88888 8888 219 222-8888 13 EMP_NO LASTNAME FIRSTNAME M STREET CITY ST ZIP ZIP_ ARE PHONE SALARY
-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- -------- ----------
BIRTHDATE HIREDATE TITLE DEPT_NO MGR REGION DIVISION TOTAL_SALES
-------------------- -------------------- ---------- ---------- ---------- ---------- -----------
10-JUN-1955 00:00:00 15-AUG-1985 00:00:00 Sales Representative 3 2 100 10 50000
9 Bar Candi C 400 East Street Yorken NY 99999 9999 220 321-9999 12
10-OCT-1933 00:00:00 15-JAN-1969 00:00:00 Sales Representative 3 5 100 10 35000
9 rows selected. SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 AS SELECT * FROM employee;
Table created. SQL> SQL> ALTER TABLE temp_emp
2 ADD CONSTRAINT pk_temp_emp 3 PRIMARY KEY (emp_no);
Table altered. SQL> SQL> drop table employee; Table dropped. SQL> drop table temp_emp; Table dropped. SQL> --
</source>
truncate a global temporary table
<source lang="sql">
SQL> SQL> create global temporary table sess_event
2 on commit preserve rows 3 as 4 select * from v$waitstat 5 where 1=0 ;
SQL> SQL> truncate table sess_event; Table truncated. SQL> SQL> drop table sess_event; Table dropped. SQL> SQL> --
</source>
Update a TEMPORARY TABLE and check the table it based on
<source lang="sql">
SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 ON COMMIT PRESERVE ROWS 3 AS SELECT * FROM employee;
SQL> SQL> UPDATE temp_emp SET salary = 99
2 WHERE title = "Designer";
3 rows updated. SQL> SQL> select * from employee where title = "Designer"
2
SQL> SELECT salary FROM temp_emp
2 WHERE title = "Designer"; SALARY
99
99
99
3 rows selected. SQL> SQL> drop table temp_emp; SQL> drop table employee; Table dropped. SQL> --
</source>
Using Temporary Tables
<source lang="sql">
SQL> SQL> SQL> SQL> CREATE TABLE emp (
2 empID INT NOT NULL PRIMARY KEY, 3 Name VARCHAR(50) NOT NULL);
Table created. SQL> INSERT INTO emp (empID,Name) VALUES (1,"Tom"); 1 row created. SQL> INSERT INTO emp (empID,Name) VALUES (2,"Jack"); 1 row created. SQL> INSERT INTO emp (empID,Name) VALUES (3,"Mary"); 1 row created. SQL> INSERT INTO emp (empID,Name) VALUES (4,"Bill"); 1 row created. SQL> INSERT INTO emp (empID,Name) VALUES (5,"Cat"); 1 row created. SQL> INSERT INTO emp (empID,Name) VALUES (6,"Victor"); 1 row created. SQL> SQL> SQL> CREATE TABLE empExam (
2 empID INT NOT NULL, 3 ExamID INT NOT NULL, 4 Mark INT, 5 Taken SMALLINT, 6 Comments VARCHAR(255), 7 CONSTRAINT PK_empExam PRIMARY KEY (empID, ExamID));
Table created. SQL> SQL> SQL> INSERT INTO empExam (empID,ExamID,Mark,Taken,Comments) VALUES (1,1,55,1,"Satisfactory"); 1 row created. SQL> INSERT INTO empExam (empID,ExamID,Mark,Taken,Comments) VALUES (1,2,73,1,"Good result"); 1 row created. SQL> INSERT INTO empExam (empID,ExamID,Mark,Taken,Comments) VALUES (2,3,44,1,"Hard"); 1 row created. SQL> INSERT INTO empExam (empID,ExamID,Mark,Taken,Comments) VALUES (2,5,39,0,"Simple"); 1 row created. SQL> INSERT INTO empExam (empID,ExamID,Mark,Taken) VALUES (2,6,63,1); 1 row created. SQL> SQL> SQL> CREATE GLOBAL TEMPORARY TABLE tmp
2 AS 3 SELECT emp.Name AS empName, AVG(Mark) AS AverageMark 4 FROM empExam 5 INNER JOIN emp 6 ON empExam.empID = emp.empID 7 GROUP BY emp.Name;
SQL> SQL> INSERT INTO tmp
2 SELECT emp.Name AS empName, AVG(Mark) AS AverageMark 3 FROM empExam 4 INNER JOIN emp 5 ON empExam.empID = emp.empID 6 GROUP BY emp.Name;
2 rows created.
SQL>
SQL>
SQL> drop table empExam;
Table dropped.
SQL> drop table emp;
Table dropped.
</source>
You cannot alter a temporary table to change its data duration.(drop and recreate)
<source lang="sql">
SQL> SQL> create table employee(
2 emp_no integer primary key 3 ,lastname varchar2(20) not null 4 ,firstname varchar2(15) not null 5 ,midinit varchar2(1) 6 ,street varchar2(30) 7 ,city varchar2(20) 8 ,state varchar2(2) 9 ,zip varchar2(5) 10 ,zip_4 varchar2(4) 11 ,area_code varchar2(3) 12 ,phone varchar2(8) 13 ,salary number(3) 14 ,birthdate date 15 ,hiredate date 16 ,title varchar2(20) 17 ,dept_no integer 18 ,mgr integer 19 ,region number 20 ,division number 21 ,total_sales number 22 );
Table created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (1,"Anderson","Nancy","N","33 Ave","London","NY","11111","1111","212","234-1111",3.75,"21-mar-1927","1-feb-1947","Sales Manager",2,null,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (2,"Last","First","F","12 Ave","Paris","CA","22222","2222","221","867-2222",7.75,"14-feb-1976","15-mar-1985","Sales Clerk",2,1,100,10,10000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (3,"Wash","Georgia","G","1 Street14","Barton","NJ","33333","3333","214","340-3333",11.50,"2-jul-1977","21-apr-2004","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (4,"Bush","Dave","D","56 Street","Island","RI","44444","4444","215","777-4444",21.65,"15-may-1945","2-aug-1975","Designer",1,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (5,"Will","Robin","W","56 Street","Island","MA","55555","5555","216","777-5555",24.65,"10-dec-1980","2-aug-2007","Designer",1,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (6,"Pete","Mona","M","13 Ave","York","MO","66666","6666","217","111-6666",9,"14-feb-1966","15-mar-1985","Sales Clerk",2,5,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (7,"Roke","John","J","67 Ave","New York","BC","77777","7777","218","122-7777",10.00,"14-jun-1955","15-mar-1975","Accountant",3,2,100,10,40000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (8,"Horry","Tedi","T","1236 Lane","Newton","NY","88888","8888","219","222-8888",13.00,"10-jun-1955","15-aug-1985","Sales Representative",3,2,100,10,50000);
1 row created. SQL> insert into employee(emp_no, lastname, firstname, midinit, street, city, state, zip,zip_4, area_code, phone, salary, birthdate, hiredate,title, dept_no, mgr, region, division, total_sales)
2 values (9,"Bar","Candi","C","400 East Street","Yorken","NY","99999","9999","220","321-9999",12.00,"10-oct-1933","15-jan-1969","Sales Representative",3,5,100,10,35000);
1 row created. SQL> SQL> SQL> CREATE GLOBAL TEMPORARY TABLE temp_emp
2 AS SELECT * FROM employee;
Table created. SQL> SQL> ALTER TABLE temp_emp ON COMMIT PRESERVE ROWS; ALTER TABLE temp_emp ON COMMIT PRESERVE ROWS
*
ERROR at line 1: ORA-01735: invalid ALTER TABLE option
SQL> SQL> drop table temp_emp; Table dropped. SQL> drop table employee; Table dropped. SQL> --
</source>
