Select com ordem aleatória
Enviado: Qua, 24 Nov 2004 3:30 pm
Olá PessoALL
Tem como buscar as linhas de uma query numa ordem randomica ?
Valeu!
Tem como buscar as linhas de uma query numa ordem randomica ?
Valeu!
SQL> SELECT *
2 FROM EMP
3 ORDER BY DBMS_UTILITY.GET_HASH_VALUE(TO_CHAR(dbms_utility.get_time)||ename,2,1048576)
4 /
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7934 MILLER CLERK 7782 23-JAN-82 1300 10
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7788 SCOTT ANALYST 7566 19-APR-87 3000 20
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7876 ADAMS CLERK 7788 23-MAY-87 1100 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7369 SMITH CLERK 7902 17-DEC-80 800 20
14 rows selected.
SQL> /
7566 JONES MANAGER 7839 02-APR-81 2975 20
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7369 SMITH CLERK 7902 17-DEC-80 800 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7788 SCOTT ANALYST 7566 19-APR-87 3000 20
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7839 KING PRESIDENT 17-NOV-81 5000 10
7876 ADAMS CLERK 7788 23-MAY-87 1100 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected.
SQL>