= 4; : HAVING « Select Query « Oracle PL / SQL'>= 4; : HAVING « Select Query « Oracle PL / SQL'>

Born after '1960-01-01', group by department number with count(*) >= 4; : HAVING « Select Query « Oracle PL / SQL





Born after '1960-01-01', group by department number with count(*) >= 4;

    
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);

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', 'TRAINER', 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',  'TRAINER', 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',   'TRAINER', 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   deptno, count(empno)
  2  from     emp
  3  where    bdate > date '1960-01-01'
  4  group by deptno
  5  having   count(*) >= 4;

    DEPTNO COUNT(EMPNO)
---------- ------------
        30            5

SQL>
SQL>
SQL> drop table emp;

Table dropped.

   
    
    
    
  










Related examples in the same category

1.Example using the MAX function with having clause
2.Using the HAVING Clause
3.Any conditions based on the outcome of a group function must be in the HAVING clause
4.Using the SUM function in HAVING Clause
5.Using HAVING with an Analytical Function
6.Sub query inside having clause
7.Subqueries in a HAVING Clause: Uses a subquery in the HAVING clause of the outer query
8.Use sum in having clause
9.Using the HAVING Clause and where clause
10.Using the HAVING Clause with aggregate function
11.Using avg() function in having clause
12.Using and, or operator in having clause
13.Using the same condition in having and where