2012年12月13日
PL/SQL Trigger
摘要： A trigger : Is a PL/SQL block or a PL/SQL procedure associated with a table, view, schema, or the database. Executes implicitly whenever a particular event takes place.Database triggers can be defined on tables and on views, if a DML operation is issued on a view, the INSTEAD OF trigger defines what 阅读全文
posted @ 2012-12-13 15:41 神之一招 阅读(1665) 评论(0) 推荐(0)