This Oracle tutorial explains how to create an AFTER UPDATE Trigger in Oracle with syntax and examples. An AFTER UPDATE Trigger means that Oracle will fire this trigger after the UPDATE operation is executed.
sql中同一个Trigger里同时包含Insert,Update,Delete SQLServer是靠Inserted表和Deleted表来处理的,判断一下就可以了,只不过比ORACLE麻烦一点createtrigger触发名on表名 insteadofinsert,update,deleteas--insert插入ifnotexists(select1fromdeleted)begin打印插入end--update更新ifexists(select1frominserted)andexists(select1...
但这次触发的数据是整个批量数据,而不是逐条数据。 一段trigger codes例子: 插入、删除和更新的触发器代码: -- dbo.trGroups.SQL IF EXISTS ( SELECT * FROM sysobjects WHERE name = 'trGroups' AND type = 'TR') BEGIN DROP TRIGGER trGroups IF NOT EXISTS ( SELECT * FROM sysobjects WHERE name = '...
CREATETRIGGERdbo.trGroups ONgroups AFTERINSERT,UPDATE,DELETE AS --This trigger submits a cached rates delete job for modified groups. --It also updates the groups' last modified columns for modified groups. --It also updates the groups' state (if currently unspecified) based on --the (first...
trigger_stmt:触发器的程序体,可以是一条SQL语句或者是用BEGIN和END包含的多条语句。...MySQL除了对INSERT、UPDATE、DELETE基本操作进行定义外,还定义了LOAD DATA和REPLACE语句,这两种语句也能引起上述6中类型的触发器的触发。...INSERT型触发器:插入某一行时激活触发器,通过 INSERT、LOAD DATA、REPLACE语句触发; ...
触发器(trigger)是MySQL提供给程序员和数据分析员来保证数据完整性的一种方法,它是与表事件相关的特殊的存储过程,它的执行不是由程序调用,也不是手工启动,而是由事件来触发,比如当对一个表进行操作(insert,delete, update)时就会激活它执行。简单理解为:你执行一条sql语句,这条sql语句的执行会自动去触发执行其他的...
SET @body = 'This is official confirmation that BUE Testing (in test) for ' + @location_name + ' (' + @checklist_number + ') has now been completed.' END IF (@checklist_activity = 'Complete Kiosk Production Testing - minimum 10% of users verified') ...
But when I try to create this trigger, SQL tells me Server: Msg 286, Level 16, State 1, Procedure trI_syslog, Line 119 The logical tables INSERTED and DELETED cannot be updated. If I can't modify values in the Inserted table, then how can I achieve what I want?
NEW.updateTime = NOW() where...= NOW(); END 2.2如果你在触发器中对操作表的其他行进行操作,会报出以下错误: Can't update table 'xxx' in stored function/trigger...而存储过程 可以接受参数,将结果范围给应用程序 4.在workbench中创建触发器 在sql语句窗口创建触发器时,需要delimiter $$ end $$ ...
If an item (items) in the main form is inserted into the database,BeforeInsertwill be called for Main Entity first, sql commandINSERTexecuted next, and finally theAfterInserttrigger will be called. These triggers contain items selected by operation type (insert), that is why there's no nee...