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【PLSQL】 oracle 行触发器示例

作者:Dezai.CN / 发布于2013/5/22/ 940


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

	Table created.

	SQL> INSERT INTO EMP VALUES(2, 'Jack', 'Tester', 6,TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30);

	1 row created.

	SQL> INSERT INTO EMP VALUES(3, 'Wil', 'Tester', 6,TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);

	1 row created.

	SQL> INSERT INTO EMP VALUES(4, 'Jane', 'Designer', 9,TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20);

	1 row created.

	SQL> INSERT INTO EMP VALUES(5, 'Mary', 'Tester', 6,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30);

	1 row created.

	SQL> INSERT INTO EMP VALUES(6, 'Black', 'Designer', 9,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

	1 row created.

	SQL> INSERT INTO EMP VALUES(7, 'Chris', 'Designer', 9,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

	1 row created.

	SQL> INSERT INTO EMP VALUES(8, 'Smart', 'Helper', 4,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

	1 row created.

	SQL> INSERT INTO EMP VALUES(9, 'Peter', 'Manager', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

	1 row created.

	SQL> INSERT INTO EMP VALUES(10, 'Take', 'Tester', 6,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30);

	1 row created.

	SQL> INSERT INTO EMP VALUES(13, 'Fake', 'Helper', 4,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

	1 row created.

	SQL>
	SQL>
	SQL> create or replace trigger emp_br before insert or update or delete
	 2 on emp
	 3 for each row
	 4 begin
	 5 dbms_output.put_line('...before row (emp)');
	 6 end;
	 7 /

	Trigger created.

	SQL>
	SQL> drop table emp;

	Table dropped.

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