в 13:45, 26 мая 2010

2010-05-26T13:45:46Z

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2010-05-26T10:11:36Z

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== Change book title to upper case if it is not==



<source lang="sql">
SQL>
SQL> CREATE TABLE employee_evaluation (
2 id number,
3 title varchar2(100),
4 written_date date );
Table created.
SQL>
SQL>
SQL>
SQL> INSERT INTO employee_evaluation(id,title,written_date)VALUES(100,"SQL",to_date("19700101", "YYYYMMDD") );
1 row created.
SQL> INSERT INTO employee_evaluation(id,title,written_date)VALUES(100,"Java",to_date("19900101", "YYYYMMDD") );
1 row created.
SQL> INSERT INTO employee_evaluation(id,title,written_date)VALUES(200,"C++",to_date("20030101", "YYYYMMDD") );
1 row created.
SQL> INSERT INTO employee_evaluation(id,title,written_date)VALUES(200,"C",to_date("20000101", "YYYYMMDD") );
1 row created.
SQL> INSERT INTO employee_evaluation(id,title,written_date)VALUES(200,"Oracle",to_date("20020101", "YYYYMMDD") );
1 row created.
SQL> INSERT INTO employee_evaluation(id,title,written_date)VALUES(200,"Theory",to_date("20050101", "YYYYMMDD") );
1 row created.
SQL> INSERT INTO employee_evaluation(id,title,written_date)values(300,"Third",to_date("20000101", "YYYYMMDD")
2 INSERT INTO employee_evaluation(id,title,written_date)values(300,"Data",to_date("20020101", "YYYYMMDD")
3
SQL> select * from employee_evaluation;
ID TITLE WRITTEN_DATE
------ ---------------------------------------------------------------------------------------------------- ----------------
100 SQL 19700101 000000
100 Java 19900101 000000
200 C++ 20030101 000000
200 C 20000101 000000
200 Oracle 20020101 000000
200 Theory 20050101 000000
6 rows selected.
SQL>
SQL>
SQL> UPDATE employee_evaluation
2 SET title = upper(title)
3 where title <> upper(title);
3 rows updated.
SQL>
SQL> select * from employee_evaluation;
ID TITLE WRITTEN_DATE
------ ---------------------------------------------------------------------------------------------------- ----------------
100 SQL 19700101 000000
100 JAVA 19900101 000000
200 C++ 20030101 000000
200 C 20000101 000000
200 ORACLE 20020101 000000
200 THEORY 20050101 000000
6 rows selected.
SQL>
SQL> drop table employee_evaluation;
Table dropped.
SQL></source>

== Change column data to upper case==



<source lang="sql">
SQL>
SQL> CREATE TABLE employee (
2 id number,
3 name varchar(100),
4 birth_date date,
5 gender varchar2(30) );
Table created.
SQL>
SQL>
SQL> INSERT INTO employee (id,name,birth_date,gender )VALUES (100,"a",to_date("19230823", "YYYYMMDD"),"MALE" );
1 row created.
SQL>
SQL> select * from employee;
ID
------
NAME
----------------------------------------------------------------------
BIRTH_DATE GENDER
---------- ------------------------------
100
a
23-08-1923 MALE

1 row selected.
SQL>
SQL> UPDATE employee
2 set name = upper(name);
1 row updated.
SQL>
SQL> drop table employee;
Table dropped.</source>

== Combine upper function with LIKE==



<source lang="sql">
SQL>
SQL> CREATE TABLE book(
2 title_id CHAR(3) NOT NULL,
3 title_name VARCHAR(40) NOT NULL,
4 type VARCHAR(10) NULL ,
5 pub_id CHAR(3) NOT NULL,
6 pages INTEGER NULL ,
7 price DECIMAL(5,2) NULL ,
8 sales INTEGER NULL ,
9 pubdate DATE NULL ,
10 contract SMALLINT NOT NULL
11 );
Table created.
SQL>
SQL>
SQL>
SQL> INSERT INTO book VALUES("T01","Java","history","P01",111,21.99,566,DATE "2000-08-01",1);
1 row created.
SQL> INSERT INTO book VALUES("T02","Oracle","history","P03", 114,19.95,9566,DATE "1998-04-01",1);
1 row created.
SQL> INSERT INTO book VALUES("T03","SQL","computer","P02", 122,39.95,25667,DATE "2000-09-01",1);
1 row created.
SQL> INSERT INTO book VALUES("T04","C++","psychology","P04", 511,12.99,13001,DATE "1999-05-31",1);
1 row created.
SQL> INSERT INTO book VALUES("T05","Python","psychology","P04", 101,6.95,201440,DATE "2001-01-01",1);
1 row created.
SQL> INSERT INTO book VALUES("T06","JavaScript","biography","P01", 173,19.95,11320,DATE "2000-07-31",1);
1 row created.
SQL> INSERT INTO book VALUES("T07","LINQ","biography","P03", 331,23.95,1500200,DATE "1999-10-01",1);
1 row created.
SQL> INSERT INTO book VALUES("T08","C#","children","P04", 861,10.00,4095,DATE "2001-06-01",1);
1 row created.
SQL> INSERT INTO book VALUES("T09","SQL Server","children","P04", 212,13.95,5000,DATE "2002-05-31",1);
1 row created.
SQL> INSERT INTO book VALUES("T10","AJAX","biography","P01", NULL,NULL,NULL,NULL,0);
1 row created.
SQL> INSERT INTO book VALUES("T11","VB","psychology","P04", 821,7.99,94123,DATE "2000-11-30",1);
1 row created.
SQL> INSERT INTO book VALUES("T12","Office","biography","P01", 507,12.99,100001,DATE "2000-08-31",1);
1 row created.
SQL> INSERT INTO book VALUES("T13","VBA","history","P03", 812,29.99,10467,DATE "1999-05-31",1);
1 row created.
SQL>
SQL>
SQL> SELECT title_name
2 FROM book
3 WHERE UPPER(title_name) LIKE "%MO%";
no rows selected
SQL>
SQL> drop table book;
Table dropped.
SQL>
SQL></source>

== UPPER(x) converts the letters in x to uppercase.==



<source lang="sql">
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> SELECT UPPER(first_name) FROM employee;
UPPER(FIRS
----------
JASON
ALISON
JAMES
CELIA
ROBERT
LINDA
DAVID
JAMES
8 rows selected.
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
2 /
Table dropped.
SQL></source>

== Use upper() function in where clause==



<source lang="sql">
SQL>
SQL> create table employees(
2 empno NUMBER(4)
3 , ename VARCHAR2(8)
4 , init VARCHAR2(5)
5 , job VARCHAR2(8)
6 , mgr NUMBER(4)
7 , bdate DATE
8 , msal NUMBER(6,2)
9 , comm NUMBER(6,2)
10 , deptno NUMBER(2) ) ;
Table created.
SQL>
SQL>
SQL> insert into employees values(1,"Jason", "N", "TRAINER", 2, date "1965-12-18", 800 , NULL, 10);
1 row created.
SQL> insert into employees values(2,"Jerry", "J", "SALESREP",3, date "1966-11-19", 1600, 300, 10);
1 row created.
SQL> insert into employees values(3,"Jord", "T" , "SALESREP",4, date "1967-10-21", 1700, 500, 20);
1 row created.
SQL> insert into employees values(4,"Mary", "J", "MANAGER", 5, date "1968-09-22", 1800, NULL, 20);
1 row created.
SQL> insert into employees values(5,"Joe", "P", "SALESREP",6, date "1969-08-23", 1900, 1400, 30);
1 row created.
SQL> insert into employees values(6,"Black", "R", "MANAGER", 7, date "1970-07-24", 2000, NULL, 30);
1 row created.
SQL> insert into employees values(7,"Red", "A", "MANAGER", 8, date "1971-06-25", 2100, NULL, 40);
1 row created.
SQL> insert into employees values(8,"White", "S", "TRAINER", 9, date "1972-05-26", 2200, NULL, 40);
1 row created.
SQL> insert into employees values(9,"Yellow", "C", "DIRECTOR",10, date "1973-04-27", 2300, NULL, 20);
1 row created.
SQL> insert into employees values(10,"Pink", "J", "SALESREP",null,date "1974-03-28", 2400, 0, 30);
1 row created.
SQL>
SQL> select lower(job), initcap(ename)
2 from employees
3 where upper(job) = "SALESREP"
4 order by length(ename);
LOWER(JO INITCAP(
-------- --------
salesrep Joe
salesrep Pink
salesrep Jord
salesrep Jerry
SQL>
SQL>
SQL> drop table employees;
Table dropped.</source>

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Oracle PL/SQL Tutorial/Character String Functions/UPPER - История изменений

в 13:45, 26 мая 2010

Admin: 1 версия