Oracle PL/SQL/Select Query/Query IN

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All attendees whose id is not in the list

   <source lang="sql">
   

SQL> SQL> create table registrations

 2  ( attendee    NUMBER(4)
 3  , course      VARCHAR2(6)
 4  , begindate   DATE
 5  , evaluation  NUMBER(1)
 6  , constraint  R_PK        primary key
 7                            (attendee,course,begindate)
 8  ) ;

Table created. SQL> SQL> insert into registrations values (2,"SQL",date "2009-04-12",4 ); 1 row created. SQL> insert into registrations values (14,"SQL",date "2009-04-12",5 ); 1 row created. SQL> insert into registrations values (6,"SQL",date "2009-04-12",4 ); 1 row created. SQL> insert into registrations values (11,"SQL",date "2009-04-12",2 ); 1 row created. SQL> insert into registrations values (8,"SQL",date "2009-10-04",NULL); 1 row created. SQL> insert into registrations values (9,"SQL",date "2009-10-04",3 ); 1 row created. SQL> insert into registrations values (13,"SQL",date "2009-10-04",4 ); 1 row created. SQL> insert into registrations values (13,"SQL",date "2009-12-13",NULL); 1 row created. SQL> insert into registrations values (6,"SQL",date "2009-12-13",NULL); 1 row created. SQL> insert into registrations values (3,"OAU",date "2009-08-10",4 ); 1 row created. SQL> insert into registrations values (12,"OAU",date "2009-08-10",4 ); 1 row created. SQL> SQL> select *

 2  from    registrations
 3  where   evaluation not in (3,4,5);
 ATTENDEE COURSE BEGINDATE  EVALUATION

------ ---------- ----------
       11 SQL    12-04-2009          2

SQL> SQL> drop table registrations; Table dropped. SQL>



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all customers who have placed at least one order from us in the last month

   <source lang="sql">
    

SQL> SQL> SQL> SQL> create table ord(

 2           order_no               integer          primary key
 3          ,cust_no                integer
 4          ,order_date             date not null
 5          ,total_order_price      number(7,2)
 6          ,deliver_date           date
 7          ,deliver_time           varchar2(7)
 8          ,payment_method         varchar2(2)
 9          ,emp_no                 number(3,0)
10          ,deliver_name           varchar2(35)
11          ,gift_message           varchar2(100)
12  );

Table created. SQL> SQL> SQL> insert into ord(order_no,cust_no,order_date,total_order_price,deliver_date,deliver_time,payment_method,emp_no,deliver_name,gift_message)

 2           values(1,1,"14-Feb-2002", 23.00, "14-Feb-2002", "12 noon", "CA",1, null, "Gift for wife");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time ,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(2,1,"14-Feb-2003", 510.98, "14-feb-2003", "5 pm", "NY",7, "Rose Ted", "Happy Valentines Day to Mother");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(3, 2,"14-Feb-2004", 315.99, "14-feb-2004", "3 pm", "VS",2, "Ani Forest", "Happy Valentines Day to Father");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(4, 2,"14-Feb-1999", 191.95, "14-feb-1999", "2 pm", "NJ",2, "O. John", "Happy Valentines Day");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(5, 6,"4-mar-2002", 101.95, "5-mar-2002", "2:30 pm", "MO"   , 2, "Cora", "Happy Birthday from John");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(6, 9,"7-apr-2003", 221.95, "7-apr-2003", "3 pm", "MA", 2, "Sake Keith", "Happy Birthday from Joe" );

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(7, 9,"20-jun-2004", 315.95, "21-jun-2004", "12 noon", "BC", 2, "Jessica Li", "Happy Birthday from Jessica");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values (8, 12, "31-dec-1999", 135.95, "1-jan-2000", "12 noon", "DI",      3, "Larry", "Happy New Year from Lawrence");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values (9, 12, "26-dec-2003", 715.95, "2-jan-2004", "12 noon", "SK",7, "Did", "Happy Birthday from Nancy" );

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(10, 4, sysdate-1, 119.95, sysdate+2, "6:30 pm", "VG",2, "P. Jing", "Happy Valentines Day to Jason");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message )

 2           values(11, 2, sysdate, 310.00, sysdate+2, "3:30 pm", "DC",2, "C. Late", "Happy Birthday Day to Jack");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)

 2           values(12, 7, sysdate-3, 121.95, sysdate-2, "1:30 pm", "AC",2, "W. Last", "Happy Birthday Day to You");

1 row created. SQL> insert into ord(order_no ,cust_no ,order_date ,total_order_price ,deliver_date ,deliver_time,payment_method ,emp_no,deliver_name ,gift_message)

 2           values(13, 7, sysdate, 211.95, sysdate-4, "4:30 pm", "CA",2, "J. Bond", "Thanks for hard working");

1 row created. SQL> SQL> SQL> create table customer(

 2           cust_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          ,company_name                      varchar2(50)
14  );

Table created. SQL> SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(1, "Allen", "Joe","J","10 Ave","London","CA","11111","1111","111", "111-1111","Big Company");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(2,"Ward","Sue","W","20 Ave","New York","NY","44444","4444","444", "436-4444","B Company");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(3,"Jason","Pure","J","50 St","Longli","CA","55555","5555","555", "234-4444","C Company");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(4,"Bird","Jill", null,"30 St","Pais","NY","22222","2222","222", "634-7733","D Company");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(5,"Hill","Carl","H","19 Drive","A Town","CA","66666","6566","666", "243-4243","E Company");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(6,"Peter","Yari","P","38 Ave","Small City","NY","77777","7777","777", "454-5443","F Inc");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(7,"Joe","Paula","J","78 St. Apt 3A","Queen City","NY","32322","2323","888", "664-4333","E Inc");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(8,"Chili","Steve","C","38 Ave Apt 62","Mili","CA","88888","8888","787", "456-4566","G Inc");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(9,"Mona","Joe","M","930 Ave933","Kansas City","MO","12345","1234","412", "456-4563","H Inc");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(10,"Hack","Kisi","H","Kings Rd","Bellmore","NY","54321","3898","516", "767-5677","I Inc");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(11,"Bill","Jose","B","12 Giant Rd.","Newton","NJ","23454","1234","958", "123-7367","J Associates");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(12,"Taker","Lawrence","T","1 Sask Rd.","Camp","NJ","19191","3298","928", "123-7384","K Company");

1 row created. SQL> insert into customer(cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(13,"Richer","Doris","R","213 Easy Street","WarPease","RI","34343","2112","501", "123-7384","L Inc");

1 row created. SQL> insert into customer( cust_no,lastname,firstname,midinit,street,city,state,zip,zip_4,area_code,phone,company_name)

 2                values(14,"Pete","Doris","P","9 Ave","New York","NY","45454","4222","112", "123-1234","M Company");

1 row created. SQL> SQL> select * from customer;

  CUST_NO LASTNAME             FIRSTNAME       M STREET                         CITY                 ST ZIP   ZIP_ ARE PHONE

-------------------- --------------- - ------------------------------ -------------------- -- ----- ---- --- --------

COMPANY_NAME


        1 Allen                Joe             J 10 Ave                         London               CA 11111 1111 111 111-1111

Big Company

        2 Ward                 Sue             W 20 Ave                         New York             NY 44444 4444 444 436-4444

B Company

        3 Jason                Pure            J 50 St                          Longli               CA 55555 5555 555 234-4444

C Company

        4 Bird                 Jill              30 St                          Pais                 NY 22222 2222 222 634-7733

D Company

        5 Hill                 Carl            H 19 Drive                       A Town               CA 66666 6566 666 243-4243

E Company

        6 Peter                Yari            P 38 Ave                         Small City           NY 77777 7777 777 454-5443

F Inc

        7 Joe                  Paula           J 78 St. Apt 3A                  Queen City           NY 32322 2323 888 664-4333

E Inc

        8 Chili                Steve           C 38 Ave Apt 62                  Mili                 CA 88888 8888 787 456-4566

G Inc

        9 Mona                 Joe             M 930 Ave933                     Kansas City          MO 12345 1234 412 456-4563

H Inc

       10 Hack                 Kisi            H Kings Rd                       Bellmore             NY 54321 3898 516 767-5677

I Inc

       11 Bill                 Jose            B 12 Giant Rd.                   Newton               NJ 23454 1234 958 123-7367

J Associates

       12 Taker                Lawrence        T 1 Sask Rd.                     Camp                 NJ 19191 3298 928 123-7384

K Company

       13 Richer               Doris           R 213 Easy Street                WarPease             RI 34343 2112 501 123-7384

L Inc

       14 Pete                 Doris           P 9 Ave                          New York             NY 45454 4222 112 123-1234

M Company

14 rows selected. SQL> SQL> select firstname || " " || lastname as "Name",

 2    "(" || area_code || ")" || phone as "Telephone"
 3    from customer
 4   where cust_no in
 5     (select cust_no from ord
 6       where order_date > add_months(sysdate, -1));

Name Telephone


-------------

Jill Bird (222)634-7733 Sue Ward (444)436-4444 Paula Joe (888)664-4333 3 rows selected. SQL> SQL> drop table customer; Table dropped. SQL> SQL> drop table ord; Table dropped. SQL> SQL> --



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not in (1,2,3,NULL)

   <source lang="sql">
   

SQL> create table registrations

 2  ( attendee    NUMBER(4)
 3  , course      VARCHAR2(6)
 4  , begindate   DATE
 5  , evaluation  NUMBER(1)
 6  , constraint  R_PK        primary key (attendee,course,begindate)
 7  ) ;

Table created. SQL> SQL> insert into registrations values (2,"SQL",date "2009-04-12",4 ); 1 row created. SQL> insert into registrations values (14,"SQL",date "2009-04-12",5 ); 1 row created. SQL> insert into registrations values (6,"SQL",date "2009-04-12",4 ); 1 row created. SQL> insert into registrations values (11,"SQL",date "2009-04-12",2 ); 1 row created. SQL> insert into registrations values (8,"SQL",date "2009-10-04",NULL); 1 row created. SQL> insert into registrations values (9,"SQL",date "2009-10-04",3 ); 1 row created. SQL> insert into registrations values (13,"SQL",date "2009-10-04",4 ); 1 row created. SQL> insert into registrations values (13,"SQL",date "2009-12-13",NULL); 1 row created. SQL> insert into registrations values (6,"SQL",date "2009-12-13",NULL); 1 row created. SQL> insert into registrations values (3,"OAU",date "2009-08-10",4 ); 1 row created. SQL> insert into registrations values (12,"OAU",date "2009-08-10",4 ); 1 row created. SQL> insert into registrations values (13,"OAU",date "2009-08-10",5 ); 1 row created. SQL> SQL> select *

 2  from   registrations
 3  where  evaluation not in (1,2,3,NULL);

no rows selected SQL> SQL> SQL> drop table registrations; Table dropped.



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NOT IN processes a null in a list of values

   <source lang="sql">
   

SQL> -- create demo table SQL> create table Employee(

 2    ID                 VARCHAR2(4 BYTE),
 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(NULL,"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

    James      Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester

8 rows selected. SQL> SQL> -- NOT IN processes a null in a list of values: SQL> SQL> SELECT * FROM employee WHERE id NOT IN ("01", "04", "05", NULL); no rows selected SQL> SQL> -- clean the table SQL> drop table Employee

 2  /

Table dropped. SQL> SQL>



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not in vs not exists

   <source lang="sql">
   

SQL> SQL> SQL> SQL> CREATE TABLE EMP(

 2      EMPNO NUMBER(4) NOT NULL,
 3      ENAME VARCHAR2(10),
 4      JOB VARCHAR2(9),
 5      MGR NUMBER(4),
 6      HIREDATE DATE,
 7      SAL NUMBER(7, 2),
 8      COMM NUMBER(7, 2),
 9      DEPTNO NUMBER(2)
10  );

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> CREATE TABLE DEPT(

 2      DEPTNO NUMBER(2),
 3      DNAME VARCHAR2(14),
 4      LOC VARCHAR2(13)
 5  );

Table created. SQL> SQL> INSERT INTO DEPT VALUES (10, "ACCOUNTING", "NEW YORK"); 1 row created. SQL> INSERT INTO DEPT VALUES (20, "RESEARCH", "DALLAS"); 1 row created. SQL> INSERT INTO DEPT VALUES (30, "SALES", "CHICAGO"); 1 row created. SQL> INSERT INTO DEPT VALUES (40, "OPERATIONS", "BOSTON"); 1 row created. SQL> SQL> SQL> select ename from emp

 2   where empno not in (select mgr from emp);

no rows selected SQL> SQL> select ename from emp

 2   where NOT EXISTS (select null from emp e2 where e2.mgr = emp.empno);

ENAME


SMITH ALLEN WARD MARTIN TURNER ADAMS JAMES MILLER 8 rows selected. SQL> SQL> SQL> drop table emp; Table dropped. SQL> drop table dept; Table dropped. SQL> SQL> SQL>



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Query with an IN operator

   <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"), 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("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","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("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2334.78, "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"), 2334.78,"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"), 2334.78,"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"), 2334.78,"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 2334.78 Vancouver Tester 03 James Smith 12-DEC-78 15-MAR-90 2334.78 Vancouver Tester 04 Celia Rice 24-OCT-82 21-APR-99 2334.78 Vancouver Manager 05 Robert Black 15-JAN-84 08-AUG-98 2334.78 Vancouver Tester 06 Linda Green 30-JUL-87 04-JAN-96 2334.78 New York Tester 07 David Larry 31-DEC-90 12-FEB-98 2334.78 New York Manager 08 James Cat 17-SEP-96 15-APR-02 2334.78 Vancouver Tester 8 rows selected. SQL> SQL> SQL> SQL> SQL> SQL> SQL> -- query with an IN operator: SQL> SQL> SELECT ID, City

 2  FROM Employee
 3  WHERE city IN ("Toronto","New York");

ID CITY


----------

01 Toronto 06 New York 07 New York SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> -- clean the table SQL> drop table Employee

 2  /
          
        
   
   
   
 </source>
   
  


Use in operator to match three employee numbers

   <source lang="sql">
   

SQL> create table emp

 2  ( empno      NUMBER(4)    constraint E_PK primary key
 3  , ename      VARCHAR2(8)
 4  , init       VARCHAR2(5)
 5  , job        VARCHAR2(8)
 6  , mgr        NUMBER(4)
 7  , bdate      DATE
 8  , sal       NUMBER(6,2)
 9  , comm       NUMBER(6,2)
10  , deptno     NUMBER(2)    default 10
11  ) ;

Table created. SQL> insert into emp values(1,"Tom","N", "Coder", 13,date "1965-12-17", 800 , NULL, 20); 1 row created. SQL> insert into emp values(2,"Jack","JAM", "Tester",6,date "1961-02-20", 1600, 300, 30); 1 row created. SQL> insert into emp values(3,"Wil","TF" , "Tester",6,date "1962-02-22", 1250, 500, 30); 1 row created. SQL> insert into emp values(4,"Jane","JM", "Designer", 9,date "1967-04-02", 2975, NULL, 20); 1 row created. SQL> insert into emp values(5,"Mary","P", "Tester",6,date "1956-09-28", 1250, 1400, 30); 1 row created. SQL> insert into emp values(6,"Black","R", "Designer", 9,date "1963-11-01", 2850, NULL, 30); 1 row created. SQL> insert into emp values(7,"Chris","AB", "Designer", 9,date "1965-06-09", 2450, NULL, 10); 1 row created. SQL> insert into emp values(8,"Smart","SCJ", "Coder", 4,date "1959-11-26", 3000, NULL, 20); 1 row created. SQL> insert into emp values(9,"Peter","CC", "Designer",NULL,date "1952-11-17", 5000, NULL, 10); 1 row created. SQL> insert into emp values(10,"Take","JJ", "Tester",6,date "1968-09-28", 1500, 0, 30); 1 row created. SQL> insert into emp values(11,"Ana","AA", "Coder", 8,date "1966-12-30", 1100, NULL, 20); 1 row created. SQL> insert into emp values(12,"Jane","R", "Manager", 6,date "1969-12-03", 800 , NULL, 30); 1 row created. SQL> insert into emp values(13,"Fake","MG", "Coder", 4,date "1959-02-13", 3000, NULL, 20); 1 row created. SQL> insert into emp values(14,"Mike","TJA","Manager", 7,date "1962-01-23", 1300, NULL, 10); 1 row created. SQL> SQL> select empno, ename, init

 2  from    emp
 3  where   empno in (2,4,8);
    EMPNO ENAME    INIT

-------- -----
        8 Smart    SCJ
        4 Jane     JM
        2 Jack     JAM

SQL> SQL> SQL> drop table emp; Table dropped.



 </source>
   
  


Use in operator with "and" in where clause

   <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, "Dillon", "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                    13-JUN-98 MGR                                        4      25000       1005
      1005 Dillon                                             sdillon@a .ru                 10-JUN-08 PROG                                       1      20000       1006
      1006 Beck                                               clbeck@g.ru                   10-JUN-08 PROG                                       2      20000
      1007 Java                                               java01@g.ru                   10-JUN-08 PROG                                       3      20000       1006

EMPLOYEE_ID LAST_NAME EMAIL HIRE_DATE JOB_ID DEPARTMENT_ID SALARY MANAGER_ID


-------------------------------------------------- ------------------------------ --------- ------------------------------ ------------- ---------- ----------
      1008 Oracle                                             oracle1@g.ru                  10-JUN-08 DBA                                        4      20000       1006

8 rows selected. SQL> SQL> CREATE TABLE departments

 2  (department_id           number(10)            not null,
 3   department_name      varchar2(50)      not null,
 4   CONSTRAINT departments_pk PRIMARY KEY (department_id)
 5  );

Table created. SQL> SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 1,             "Data Group" );

1 row created. SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 2,             "Purchasing" );

1 row created. SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 3,             "Call Center" );

1 row created. SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 4,             "Communication" );

1 row created. SQL> SQL> SQL> SQL> select employees.employee_id, employees.last_name,

 2             departments.department_name
 3        from employees, departments
 4       where employees.department_id in (2, 1)
 5         and departments.department_id in (2, 1)
 6      /

EMPLOYEE_ID LAST_NAME DEPARTMENT_NA


-------------------------------------------------- -------------
      1001 Lawson                                             Data Group
      1002 Wells                                              Data Group
      1005 Dillon                                             Data Group
      1006 Beck                                               Data Group
      1001 Lawson                                             Purchasing
      1002 Wells                                              Purchasing
      1005 Dillon                                             Purchasing

EMPLOYEE_ID LAST_NAME DEPARTMENT_NA


-------------------------------------------------- -------------
      1006 Beck                                               Purchasing

8 rows selected. SQL> SQL> SQL> drop table employees; Table dropped. SQL>



 </source>
   
  


Use in operator with number type values

   <source lang="sql">
    

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, "Dillon", "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                    13-JUN-98 MGR                                        4      25000       1005
      1005 Dillon                                             sdillon@a .ru                 10-JUN-08 PROG                                       1      20000       1006
      1006 Beck                                               clbeck@g.ru                   10-JUN-08 PROG                                       2      20000
      1007 Java                                               java01@g.ru                   10-JUN-08 PROG                                       3      20000       1006

EMPLOYEE_ID LAST_NAME EMAIL HIRE_DATE JOB_ID DEPARTMENT_ID SALARY MANAGER_ID


-------------------------------------------------- ------------------------------ --------- ------------------------------ ------------- ---------- ----------
      1008 Oracle                                             oracle1@g.ru                  10-JUN-08 DBA                                        4      20000       1006

8 rows selected. SQL> SQL> SQL> SQL> select employee_id, last_name

 2        from employees
 3       where department_id in (2, 1);

EMPLOYEE_ID LAST_NAME


--------------------------------------------------
      1001 Lawson
      1002 Wells
      1005 Dillon
      1006 Beck

4 rows selected. SQL> SQL> SQL> drop table employees; Table dropped. SQL> SQL>



 </source>
   
  


Use in operator with table join

   <source lang="sql">
    

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, "Dillon", "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                    13-JUN-98 MGR                                        4      25000       1005
      1005 Dillon                                             sdillon@a .ru                 10-JUN-08 PROG                                       1      20000       1006
      1006 Beck                                               clbeck@g.ru                   10-JUN-08 PROG                                       2      20000
      1007 Java                                               java01@g.ru                   10-JUN-08 PROG                                       3      20000       1006

EMPLOYEE_ID LAST_NAME EMAIL HIRE_DATE JOB_ID DEPARTMENT_ID SALARY MANAGER_ID


-------------------------------------------------- ------------------------------ --------- ------------------------------ ------------- ---------- ----------
      1008 Oracle                                             oracle1@g.ru                  10-JUN-08 DBA                                        4      20000       1006

8 rows selected. SQL> SQL> select employees.employee_id, employees.last_name,

 2             departments.department_name
 3        from employees, departments
 4       where employees.department_id in (2, 1)
 5         and departments.department_id = employees.department_id
 6      /

EMPLOYEE_ID LAST_NAME DEPARTMENT_NA


-------------------------------------------------- -------------
      1001 Lawson                                             Data Group
      1002 Wells                                              Purchasing
      1005 Dillon                                             Data Group
      1006 Beck                                               Purchasing

4 rows selected. SQL> drop table employees; Table dropped. SQL>



 </source>
   
  


Use in operator with varchar2 type value

   <source lang="sql">
    

SQL> SQL> CREATE TABLE departments

 2  (department_id           number(10)            not null,
 3   department_name      varchar2(50)      not null,
 4   CONSTRAINT departments_pk PRIMARY KEY (department_id)
 5  );

Table created. SQL> SQL> SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 1,             "Data Group" );

1 row created. SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 2,             "Purchasing" );

1 row created. SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 3,             "Call Center" );

1 row created. SQL> SQL> insert into departments ( department_id, department_name )

 2                    values( 4,             "Communication" );

1 row created. SQL> 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    CONSTRAINT           employees_pk PRIMARY KEY (employee_id),
11    CONSTRAINT           fk_departments FOREIGN KEY (department_id) REFERENCES departments(department_id)
12  );

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                    13-JUN-98 MGR                                        4      25000       1005
      1005 Viper                                              sdillon@a .ru                 10-JUN-08 PROG                                       1      20000       1006
      1006 Beck                                               clbeck@g.ru                   10-JUN-08 PROG                                       2      20000
      1007 Java                                               java01@g.ru                   10-JUN-08 PROG                                       3      20000       1006

EMPLOYEE_ID LAST_NAME EMAIL HIRE_DATE JOB_ID DEPARTMENT_ID SALARY MANAGER_ID


-------------------------------------------------- ------------------------------ --------- ------------------------------ ------------- ---------- ----------
      1008 Oracle                                             oracle1@g.ru                  10-JUN-08 DBA                                        4      20000       1006

8 rows selected. SQL> SQL> select * from departments; DEPARTMENT_ID DEPARTMENT_NA


-------------
           1 Data Group
           2 Purchasing
           3 Call Center
           4 Communication

4 rows selected. SQL> SQL> select e.employee_id, e.last_name, d.department_name

 2        from employees e, departments d
 3       where department_name in ("Data Group","Purchasing")
 4         and e.department_id = d.department_id
 5      /

EMPLOYEE_ID LAST_NAME DEPARTMENT_NA


-------------------------------------------------- -------------
      1001 Lawson                                             Data Group
      1005 Viper                                              Data Group
      1002 Wells                                              Purchasing
      1006 Beck                                               Purchasing

4 rows selected. SQL> SQL> SQL> drop table employees cascade constraints; Table dropped. SQL> drop table departments cascade constraints; Table dropped. SQL>



 </source>
   
  


Using the IN operator: compare with OR

   <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"), 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("03","James",    "Smith",   to_date("19781212","YYYYMMDD"), to_date("19900315","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("04","Celia",    "Rice",    to_date("19821024","YYYYMMDD"), to_date("19990421","YYYYMMDD"), 2334.78, "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"), 2334.78,"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"), 2334.78,"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"), 2334.78,"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 2334.78 Vancouver Tester 03 James Smith 12-DEC-78 15-MAR-90 2334.78 Vancouver Tester 04 Celia Rice 24-OCT-82 21-APR-99 2334.78 Vancouver Manager 05 Robert Black 15-JAN-84 08-AUG-98 2334.78 Vancouver Tester 06 Linda Green 30-JUL-87 04-JAN-96 2334.78 New York Tester 07 David Larry 31-DEC-90 12-FEB-98 2334.78 New York Manager 08 James Cat 17-SEP-96 15-APR-02 2334.78 Vancouver Tester 8 rows selected. SQL> SQL> SQL> SQL> SQL> -- Using the IN operator SQL> SQL> SELECT ID, City

 2  FROM Employee
 3  WHERE city ="Toronto" OR City ="New York";

ID CITY


----------

01 Toronto 06 New York 07 New York SQL> SQL> SQL> SQL> SQL> SELECT ID, City

 2  FROM Employee
 3  WHERE city in ("Toronto" ,"New York");

ID CITY


----------

01 Toronto 06 New York 07 New York SQL> SQL> SQL> SQL> SQL> SQL> SQL> SQL> -- clean the table SQL> drop table Employee

 2  /

Table dropped. SQL> SQL>



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Value pair and in operator

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SQL> SQL> create table registrations

 2  ( attendee    NUMBER(4)
 3  , course      VARCHAR2(6)
 4  , begindate   DATE
 5  , evaluation  NUMBER(1)
 6  , constraint  R_PK        primary key
 7                            (attendee,course,begindate)
 8  ) ;

Table created. SQL> SQL> insert into registrations values (2,"SQL",date "2009-04-12",4 ); 1 row created. SQL> insert into registrations values (14,"SQL",date "2009-04-12",5 ); 1 row created. SQL> insert into registrations values (6,"SQL",date "2009-04-12",4 ); 1 row created. SQL> insert into registrations values (11,"SQL",date "2009-04-12",2 ); 1 row created. SQL> insert into registrations values (8,"SQL",date "2009-10-04",NULL); 1 row created. SQL> insert into registrations values (9,"SQL",date "2009-10-04",3 ); 1 row created. SQL> insert into registrations values (13,"SQL",date "2009-10-04",4 ); 1 row created. SQL> insert into registrations values (13,"SQL",date "2009-12-13",NULL); 1 row created. SQL> SQL> create table offerings

 2  ( course     VARCHAR2(6)
 3  , begindate  DATE
 4  , Coder    NUMBER(4)
 5  , location   VARCHAR2(8)
 6  ) ;

Table created. SQL> insert into offerings values ("SQL",date "2009-04-12",13,"DALLAS" ); 1 row created. SQL> insert into offerings values ("OAU",date "2009-08-10",4,"CHICAGO"); 1 row created. SQL> insert into offerings values ("SQL",date "2009-10-04",1,"SEATTLE"); 1 row created. SQL> insert into offerings values ("SQL",date "2009-12-13",1,"DALLAS" ); 1 row created. SQL> insert into offerings values ("JAV",date "2009-12-13",4,"SEATTLE"); 1 row created. SQL> insert into offerings values ("XML",date "2000-02-03",1,"DALLAS" ); 1 row created. SQL> insert into offerings values ("JAV",date "2000-02-01",11,"DALLAS" ); 1 row created. SQL> insert into offerings values ("PLS",date "2000-09-11",8,"DALLAS" ); 1 row created. SQL> insert into offerings values ("XML",date "2000-09-18",NULL,"SEATTLE"); 1 row created. SQL> insert into offerings values ("OAU",date "2000-09-27",13,"DALLAS" ); 1 row created. SQL> insert into offerings values ("ERM",date "2001-01-15",NULL, NULL ); 1 row created. SQL> insert into offerings values ("PRO",date "2001-02-19",NULL,"DALLAS" ); 1 row created. SQL> insert into offerings values ("RSD",date "2001-02-24",8,"CHICAGO"); 1 row created. SQL> SQL> SQL> select attendee

 2  from   registrations
 3  where (course, begindate) in
 4        (select course, begindate
 5         from   offerings
 6         where  location = "CHICAGO");

no rows selected SQL> SQL> drop table offerings; Table dropped. SQL> drop table registrations; Table dropped. SQL>



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