MINUS: returns all those records from the first query, but not the second : Minus « Result Set « Oracle PL / SQL

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Oracle PL / SQL » Result Set » Minus 




MINUS: returns all those records from the first query, but not the second
  

SQL> CREATE TABLE EMP (EMPNO NUMBER(4NOT NULL,
  2                    ENAME VARCHAR2(10),
  3                    JOB VARCHAR2(9),
  4                    MGR NUMBER(4),
  5                    HIREDATE DATE,
  6                    SAL NUMBER(72),
  7                    COMM NUMBER(72),
  8                    DEPTNO NUMBER(2));

Table created.

SQL>
SQL> INSERT INTO EMP VALUES (7369'SMITH', 'CLERK',    7902, TO_DATE('17-DEC-1980', 'DD-MON-YYYY'), 800, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES (7499'ALLEN', 'SALESMAN', 7698, TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 160030030);

row created.

SQL> INSERT INTO EMP VALUES (7521'WARD',  'SALESMAN', 7698, TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 125050030);

row created.

SQL> INSERT INTO EMP VALUES (7566'JONES', 'MANAGER',  7839, TO_DATE('2-APR-1981',  'DD-MON-YYYY'), 2975, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES (7654'MARTIN', 'SALESMAN', 7698,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250140030);

row created.

SQL> INSERT INTO EMP VALUES (7698'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

row created.

SQL> INSERT INTO EMP VALUES (7782'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

row created.

SQL> INSERT INTO EMP VALUES (7788'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES (7839'KING', 'PRESIDENT', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

row created.

SQL> INSERT INTO EMP VALUES (7844'TURNER', 'SALESMAN', 7698,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500030);

row created.

SQL> INSERT INTO EMP VALUES (7876'ADAMS', 'CLERK', 7788,TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES (7900'JAMES', 'CLERK', 7698,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30);

row created.

SQL> INSERT INTO EMP VALUES (7902'FORD', 'ANALYST', 7566,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES (7934'MILLER', 'CLERK', 7782,TO_DATE('23-JAN-1982', 'DD-MON-YYYY'), 1300, NULL, 10);

row created.

SQL>
SQL> --  MINUS set operator returns all those records that are returned from the first query, but not the second.
SQL>
SQL> select empno, ename
  2        from emp
  3       where ename like 'A%'
  4          or ename like 'B%'
  5      minus
  6      select empno, ename
  7        from emp
  8       where ename like 'B%'
  9          or ename like 'C%';

     EMPNO ENAME
---------- ----------
      7499 ALLEN
      7876 ADAMS

SQL>
SQL>
SQL>
SQL>
SQL> drop table emp;

Table dropped.

SQL>
SQL>
SQL>

           
         
    
  














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