Mega Code Archive

Temporary table on commit preserce and delete

SQL> SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL, 2 ENAME VARCHAR2(10), 3 JOB VARCHAR2(9), 4 MGR NUMBER(4), 5 HIREDATE DATE, 6 SAL NUMBER(7, 2), 7 COMM NUMBER(7, 2), 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); 1 row created. SQL> INSERT INTO EMP VALUES (7499, 'ALLEN', 'SALESMAN', 7698, TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7521, 'WARD', 'SALESMAN', 7698, TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7566, 'JONES', 'MANAGER', 7839, TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7654, 'MARTIN', 'SALESMAN', 7698,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7698, 'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7782, 'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10); 1 row created. SQL> INSERT INTO EMP VALUES (7788, 'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7839, 'KING', 'PRESIDENT', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10); 1 row created. SQL> INSERT INTO EMP VALUES (7844, 'TURNER', 'SALESMAN', 7698,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7876, 'ADAMS', 'CLERK', 7788,TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7900, 'JAMES', 'CLERK', 7698,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30); 1 row created. SQL> INSERT INTO EMP VALUES (7902, 'FORD', 'ANALYST', 7566,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20); 1 row created. SQL> INSERT INTO EMP VALUES (7934, 'MILLER', 'CLERK', 7782,TO_DATE('23-JAN-1982', 'DD-MON-YYYY'), 1300, NULL, 10); 1 row created. SQL> SQL> SQL> create global temporary table MyTable_session 2 on commit preserve rows 3 as 4 select * from emp where 1=0 5 / SQL> insert into MyTable_session select * from emp; 14 rows created. SQL> SQL> SQL> create global temporary table MyTable_transaction 2 on commit delete rows 3 as 4 select * from emp where 1=0 5 / Table created. SQL> SQL> SQL> insert into MyTable_transaction select * from emp; 14 rows created. SQL> SQL> SQL> select session_cnt, transaction_cnt 2 from ( select count(*) session_cnt from MyTable_session ), 3 ( select count(*) transaction_cnt from MyTable_transaction ); SESSION_CNT TRANSACTION_CNT ----------- --------------- 14 14 1 row selected. SQL> SQL> commit; Commit complete. SQL> SQL> select session_cnt, transaction_cnt 2 from ( select count(*) session_cnt from MyTable_session ), 3 ( select count(*) transaction_cnt from MyTable_transaction ); SESSION_CNT TRANSACTION_CNT ----------- --------------- 14 0 1 row selected. SQL> SQL> drop table MyTable_session; SQL> SQL> drop table MyTable_transaction; Table dropped. SQL> SQL> drop table emp; Table dropped. SQL> SQL> --