DISTINCT tableName.* : DISTINCT « Select Query « Oracle PL / SQL

Home
Oracle PL / SQL
1.Aggregate Functions
2.Analytical Functions
3.Char Functions
4.Constraints
5.Conversion Functions
6.Cursor
7.Data Type
8.Date Timezone
9.Hierarchical Query
10.Index
11.Insert Delete Update
12.Large Objects
13.Numeric Math Functions
14.Object Oriented Database
15.PL SQL
16.Regular Expressions
17.Report Column Page
18.Result Set
19.Select Query
20.Sequence
21.SQL Plus
22.Stored Procedure Function
23.Subquery
24.System Packages
25.System Tables Views
26.Table
27.Table Joins
28.Trigger
29.User Previliege
30.View
31.XML
Oracle PL / SQL » Select Query » DISTINCT 




DISTINCT tableName.*
 
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',   'TRAINER', 13,date '1965-12-17',  800 , NULL,  20);

row created.

SQL> insert into emp values(2,'Jack','JAM', 'Tester',6,date '1961-02-20',  1600300,   30);

row created.

SQL> insert into emp values(3,'Wil','TF' ,  'Tester',6,date '1962-02-22',  1250500,   30);

row created.

SQL> insert into emp values(4,'Jane','JM',  'Designer', 9,date '1967-04-02',  2975, NULL,  20);

row created.

SQL> insert into emp values(5,'Mary','P',  'Tester',6,date '1956-09-28',  12501400,  30);

row created.

SQL> insert into emp values(6,'Black','R',   'Designer', 9,date '1963-11-01',  2850, NULL,  30);

row created.

SQL> insert into emp values(7,'Chris','AB',  'Designer', 9,date '1965-06-09',  2450, NULL,  10);

row created.

SQL> insert into emp values(8,'Smart','SCJ', 'TRAINER', 4,date '1959-11-26',  3000, NULL,  20);

row created.

SQL> insert into emp values(9,'Peter','CC',   'Designer',NULL,date '1952-11-17',  5000, NULL,  10);

row created.

SQL> insert into emp values(10,'Take','JJ', 'Tester',6,date '1968-09-28',  15000,     30);

row created.

SQL> insert into emp values(11,'Ana','AA',  'TRAINER', 8,date '1966-12-30',  1100, NULL,  20);

row created.

SQL> insert into emp values(12,'Jane','R',   'Manager',   6,date '1969-12-03',  800 , NULL,  30);

row created.

SQL> insert into emp values(13,'Fake','MG',   'TRAINER', 4,date '1959-02-13',  3000, NULL,  20);

row created.

SQL> insert into emp values(14,'Mike','TJA','Manager',   7,date '1962-01-23',  1300, NULL,  10);

row created.

SQL> create table offerings
  2  course     VARCHAR2(6)
  3  , begindate  DATE
  4  , trainer    NUMBER(4)
  5  , location   VARCHAR2(8)
  6  ;

Table created.

SQL> insert into offerings values ('SQL',date '2009-04-12',13,'DALLAS' );

row created.

SQL> insert into offerings values ('OAU',date '2009-08-10',4,'CHICAGO');

row created.

SQL> insert into offerings values ('SQL',date '2009-10-04',1,'SEATTLE');

row created.

SQL> insert into offerings values ('SQL',date '2009-12-13',1,'DALLAS' );

row created.

SQL> insert into offerings values ('JAV',date '2009-12-13',4,'SEATTLE');

row created.

SQL> insert into offerings values ('XML',date '2000-02-03',1,'DALLAS' );

row created.

SQL> insert into offerings values ('JAV',date '2000-02-01',11,'DALLAS' );

row created.

SQL> insert into offerings values ('PLS',date '2000-09-11',8,'DALLAS' );

row created.

SQL> insert into offerings values ('XML',date '2000-09-18',NULL,'SEATTLE');

row created.

SQL> insert into offerings values ('OAU',date '2000-09-27',13,'DALLAS' );

row created.

SQL> insert into offerings values ('ERM',date '2001-01-15',NULL, NULL    );

row created.

SQL> insert into offerings values ('PRO',date '2001-02-19',NULL,'DALLAS' );

row created.

SQL> insert into offerings values ('RSD',date '2001-02-24',8,'CHICAGO');

row created.

SQL>
SQL> select DISTINCT e.*
  2  from   emp e
  3         join
  4         offerings o
  5         on e.empno = o.trainer
  6  where  o.course = 'SQL';

     EMPNO ENAME    INIT  JOB             MGR BDATE             SAL       COMM
---------- -------- ----- -------- ---------- ---------- ---------- ----------
    DEPTNO
----------
         Tom      N     TRAINER          13 17-12-1965        800
        20

        13 Fake     MG                      4 13-02-1959       3000
        20


SQL>
SQL> drop table offerings;

Table dropped.

SQL> drop table emp;

Table dropped.

SQL>

   
  














Related examples in the same category
1.Remember that the DISTINCT operator applies to the entire select list
2.DISTINCT: Eliminating duplication in the result set
3.DISTINCT operator inside a group function
4.DISTINCT clause can be used with more than one field
5.Eliminating Duplicate Data Using DISTINCT
6.Eliminating Duplicate Date type Data Using DISTINCT
7.Count distinct with group by
8.Distinct city and state
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.