Left join with plus sign : Left Outer Join « Table Joins « Oracle PL / SQL

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Oracle PL / SQL » Table Joins » Left Outer Join 
Left join with plus sign
 

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);

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', 'Coder', 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',  'Coder', 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',   'Coder', 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>
SQL> create table departments
  2  deptno NUMBER(2)     constraint D_PK primary key
  3  , dname  VARCHAR2(10)
  4  , location VARCHAR2(8)
  5  , mgr    NUMBER(4)
  6  ;

Table created.

SQL>
SQL> insert into departments values (10,'ACCOUNTING','NEW YORK',7);

row created.

SQL> insert into departments values (20,'TRAINING',  'DALLAS',  4);

row created.

SQL> insert into departments values (30,'SALES',     'CHICAGO', 6);

row created.

SQL> insert into departments values (40,'HR',        'BOSTON',  9);

row created.

SQL>
SQL>
SQL> select d.deptno, d.location
  2  ,      e.ename, e.init
  3  from   emp e, departments d
  4  where  e.deptno(+= d.deptno
  5  order  by d.deptno, e.ename;

    DEPTNO LOCATION ENAME    INIT
---------- -------- -------- -----
        10 NEW YORK Chris    AB
        10 NEW YORK Mike     TJA
        10 NEW YORK Peter    CC
        20 DALLAS   Ana      AA
        20 DALLAS   Fake     MG
        20 DALLAS   Jane     JM
        20 DALLAS   Smart    SCJ
        20 DALLAS   Tom      N
        30 CHICAGO  Black    R
        30 CHICAGO  Jack     JAM
        30 CHICAGO  Jane     R
        30 CHICAGO  Mary     P
        30 CHICAGO  Take     JJ
        30 CHICAGO  Wil      TF
        40 BOSTON

15 rows selected.

SQL>
SQL> drop table emp;

Table dropped.

SQL> drop table departments;

Table dropped.

   
  
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