group by ROLLUP(department no, job title)

 

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
  2  ,        case grouping_id(deptno,job)
  3                when 0 then job
  4                when 1 then 'dept'
  5                when 3 then 'total'
  6           end  job
  7  ,        count(empno) headcount
  8  from     emp
  9  group by ROLLUP(deptno, job);

    DEPTNO JOB       HEADCOUNT
---------- -------- ----------
        10 Manager           1
        10 Designer          2
        10 dept              3
        20 TRAINER           4
        20 Designer          1
        20 dept              5
        30 Tester            4
        30 Manager           1
        30 Designer          1
        30 dept              6
           total            14

11 rows selected.

SQL>
SQL>
SQL> drop table emp;

Table dropped.

Related examples in the same category

1.	Rollup: give the sum on the aggregate; it is used as an add-on to the GROUP BY clause
2.	With ROLLUP and ROW_NUMBER added
3.	The ROLLUP clause extends GROUP BY to return a row containing a subtotal for each group along with a total for all groups
4.	Changing the Position of Columns Passed to ROLLUP
5.	Passing Multiple Columns to ROLLUP: groups the rows into blocks with the same column values
6.	Using AVG with ROLLUP
7.	Rollup function in group by clause
8.	ROLLUP and RANK() to get the sales rankings by product type ID
9.	Demonstrate a partial rollup
10.	Count employees, group by ROLLUP(department no, job title)
11.	group by rollup

group by ROLLUP(department no, job title) : Rollup « Analytical Functions « Oracle PL / SQL

Related examples in the same category