Performing Right Outer Joins Using SQL/92 : Outer Join SQL 92 Syntax « Table Joins « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Table Joins » Outer Join SQL 92 Syntax 
7. 10. 3. Performing Right Outer Joins Using SQL/92
SQL>
SQL>
SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    EMPNO         NUMBER(3),
  3    ENAME         VARCHAR2(15 BYTE),
  4    HIREDATE      DATE,
  5    ORIG_SALARY   NUMBER(6),
  6    CURR_SALARY   NUMBER(6),
  7    REGION        VARCHAR2(BYTE),
  8    MANAGER_ID    NUMBER(3)
  9  )
 10  /

Table created.

SQL>
SQL> create table job (
  2    EMPNO         NUMBER(3),
  3    jobtitle      VARCHAR2(20 BYTE)
  4  )
  5  /

Table created.

SQL>
SQL> insert into job (EMPNO, Jobtitlevalues (1,'Tester');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (2,'Accountant');

row created.

SQL>
SQL> insert into job (EMPNO, Jobtitlevalues (7,'Proffessor');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (8,'Programmer');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (9,'Developer');

row created.

SQL>
SQL>
SQL> -- prepare data
SQL> insert into Employee(EMPNO,  EName,   HIREDATE,                       ORIG_SALARY,       CURR_SALARY,  REGION, MANAGER_ID)
  2               values (1,      'Jason', to_date('19960725','YYYYMMDD'), 1234,              8767,         'E',    2)
  3  /

row created.

SQL> insert into Employee(EMPNO,  EName,   HIREDATE,                       ORIG_SALARY,       CURR_SALARY,  REGION, MANAGER_ID)
  2               values (2,      'John',  to_date('19970715','YYYYMMDD'), 2341,              3456,         'W',    3)
  3  /

row created.

SQL> insert into Employee(EMPNO,  EName,   HIREDATE,                       ORIG_SALARY,       CURR_SALARY,  REGION, MANAGER_ID)
  2               values (3,      'Joe',   to_date('19860125','YYYYMMDD'), 4321,              5654,         'E',    3)
  3  /

row created.

SQL> insert into Employee(EMPNO,  EName,   HIREDATE,                       ORIG_SALARY,       CURR_SALARY,  REGION, MANAGER_ID)
  2               values (7,      'Jodd',  to_date('20030720','YYYYMMDD'), 5438,              7658,         'E',    6)
  3  /

row created.

SQL> insert into Employee(EMPNO,  EName,   HIREDATE,                       ORIG_SALARY,       CURR_SALARY,  REGION)
  2               values (8,      'Joke',  to_date('20020101','YYYYMMDD'), 8765,              4543,         'W')
  3  /

row created.

SQL> insert into Employee(EMPNO,  EName,   HIREDATE,                       ORIG_SALARY,       CURR_SALARY,  REGION)
  2               values (9,      'Jack',  to_date('20010829','YYYYMMDD'), 7896,              1232,         'E')
  3  /

row created.

SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select from Employee
  2  /

     EMPNO ENAME           HIREDATE  ORIG_SALARY CURR_SALARY R MANAGER_ID
---------- --------------- --------- ----------- ----------- - ----------
         Jason           25-JUL-96        1234        8767 E          2
         John            15-JUL-97        2341        3456 W          3
         Joe             25-JAN-86        4321        5654 E          3
         Jodd            20-JUL-03        5438        7658 E          6
         Joke            01-JAN-02        8765        4543 W
         Jack            29-AUG-01        7896        1232 E

rows selected.

SQL> select from job
  2  /

     EMPNO JOBTITLE
---------- --------------------
         Tester
         Accountant
         Proffessor
         Programmer
         Developer

SQL>
SQL> SELECT e.ename, j.jobtitle FROM employee e, job j WHERE e.empno (+= j.empno;

ENAME           JOBTITLE
--------------- --------------------
Jason           Tester
John            Accountant
Jodd            Proffessor
Joke            Programmer
Jack            Developer

SQL> --rewrites this query using the SQL/92 RIGHT OUTER JOIN keywords:
SQL> SELECT e.ename, j.jobtitle FROM employee e RIGHT OUTER JOIN job j USING (empno);

ENAME           JOBTITLE
--------------- --------------------
Jason           Tester
John            Accountant
Jodd            Proffessor
Joke            Programmer
Jack            Developer

SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL> drop table job
  2  /

Table dropped.

SQL>
7. 10. Outer Join SQL 92 Syntax
7. 10. 1. Performing Outer Joins Using SQL/92
7. 10. 2. Performing Left Outer Joins Using SQL/92
7. 10. 3. Performing Right Outer Joins Using SQL/92
7. 10. 4. Performing Full Outer Joins Using SQL/92
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