资讯中心

Oracle 触发器的使用小结
  资讯来源:海力源码    发布时间:2022-9-6 9:53:07
--建递增序列
CREATE SEQUENCE LZEAM_SP_LOOP_EQ_SEQ MINVALUE 1 INCREMENT BY 1 START WITH 1
测试:
SELECT LZEAM_SP_LOOP_EQ_SEQ.NEXTVAL FROM DUAL
--建触发器
CREATE OR REPLACE TRIGGER LZEAM.LZEAM_SP_LOOP_EQ_TRIGGER BEFORE INSERT ON SP_LOOP_EQ FOR EACH ROW BEGIN SELECT LZEAM.LZEAM_SP_LOOP_EQ_SEQ.NEXTVAL INTO :NEW.LOOP_EQ_CODE FROM DUAL; END;
--查触发器
SELECT * FROM USER_TRIGGERS;
/**启/禁用触发器*/
ALTER TABLE SP_LOOP_EQ DISABLE ALL TRIGGERS ALTER TABLE SP_LOOP_EQ ENABLE ALL TRIGGERS

上一条:Oracle 的入门心得 强烈推荐
下一条:浅析Oracle中char和varchar2的区别


Copyright www.hailiym.com © 2022