语法:Trigger on an INSERT, UPDATE, or DELETE statement to a table or view (DML Trigger)CREATE TRIGGER [ schema_name . ]trigger_name ON { table | view } [ WITH <dml_trigger_option> [ ,...n ] ]{ FOR | AFTER | INSTEAD OF } { [ INSERT ] [ , ] [ UPDATE ] […
sqlserver查找 table, view, column select * from information_schema.tables where table_schema='bk' select * from information_schema.views where table_schema='bk' select * from information_schema.columns where column_name like '%name' -- 查询包含某个列名的表 selec…
1.创建Mysql触发器: 语法: CREATE TRIGGER trigger_name trigger_time trigger_event ON tbl_name FOR EACH ROW BEGIN trigger_stmt //语句块 END: CREATE TRIGGER trigger_name trigger_time trigger_event ON tbl_name FOR EACH ROW BEGIN trigger_stmt END:大写的为关键字 trigger_nam…
先创建一个简单的触发器 CREATE TRIGGER trigger_name ON table_name [WITH ENCRYPTION] FOR | AFTER | INSTEAD OF [DELETE, INSERT, UPDATE] AS T-SQL语句 GO 触发器位置:数据库>表>我这里是表名table_name>触发器 解释:1.[WITH ENCRYPTION]:表示将该触发器加密,加密后触发器执行方法将无法被查看 [DELETE, INSERT, UPDATE]对应为…
经过昨天多次失败,今天终于将我要实现的触发器功能写成功了,触发器代码如下: -- use dbfortest; drop trigger if exists tg_before_insert_on_dttest; -- 分号必须要 create trigger tg_before_insert_on_dttest before inserton dttest for each row /* for each row必须要(但是其它的数据库貌似可要可不要,又或者我的MySQL选择的引擎必须要有fo…