昨天写了第一个触发器,今天在要研究触发器的语法
SQL触发器语法参考
CreateTRIGGER trigger_name ON { table | view } [ WITH ENCRYPTION ] { { { FOR |AFTER | INSTEAD OF } { [ Insert ] [ , ] [ Update ] } [ WITH APPEND ] [ NOT FOR REPLICATION ] AS [ { IF Update ( column ) [ { AND | or } Update ( column ) ] [ ...n ] | IF ( COLUMNS_UpdateD ( ) { bitwise_operator } updated_bitmask) { comparison_operator } column_bitmask [ ...n ] } ] sql_statement [ ...n ] } } 参数 trigger_name 是触发器的名称。触发器名称必须符合标识符规则,并且在数据库中必须唯一。可以选择是否指定触发器所有者名称。 Table | view
SQL触发器语法参考
CreateTRIGGER trigger_name ON { table | view } [ WITH ENCRYPTION ] { { { FOR |AFTER | INSTEAD OF } { [ Insert ] [ , ] [ Update ] }