create trigger f on tbl for update as if update(status) or update(title) sql_statement --更新了 status 或 title 列 inserted、deleted 这是两个虚拟表,inserted 保存的是 insert 或 update 之后所影响的记录形成的表,deleted 保存的是 delete 或
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(select1fromdeleted)begin打印修改end--delete删除ifnotexists...
AFTER INSERT, 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) state extracted from ...
insert触发器,会在inserted表中添加一条刚插入的记录。 # 创建delete类型触发器 --delete删除类型触发器 if (object_id('tgr_classes_delete', 'TR') is not null) drop trigger tgr_classes_delete go create trigger tgr_classes_delete on classes for delete --删除触发 as print '备份数据中……'; if...
第五十六章 SQL命令 INSERT OR UPDATE 在表中添加新行或更新表中的现有行。 大纲 INSERT OR UPDATE [%keyword] [INTO] table SET column = scalar-expression {,column2 = scalar-expression2} ... | [ (column{,column2} ...) ] VALUES (scalar-expression {,scalar-expression2} ...) | VALUES :...
一个触发器内三种INSERT,UPDATE,DELETE状态 CREATE TRIGGER tr_T_A ON T_A for INSERT,UPDATE,DELETE 如IF exists (select * from inserted) and not exists (select * from deleted) 则为 INSERT 如IF exists(select * from inserted ) and exists (select * from deleted) 则为 UPDATE ...
1.插入操作(Insert) Inserted表有数据,Deleted表无数据 2.删除操作(Delete) Inserted表无数据,Deleted表有数据 3.更新操作(Update) Inserted表有数据(新数据),Deleted表有数据(旧数据) Create Trigger tr_PCard On P_Card for Insert,Update,Delete if exists (select * from inserted) AND exists (sel...
在vw1视图上建立insert触发器:create trigger tr1 on vw1 instead of insert as insert into 表A select Aid,Bid,c1 from inserted insert into 表B select Bid,c2 from inserted 在vw1视图上建立update触发器:create trigger tr2 on vw1 instead of update as update 表A set Aid=a.Aid,Bid=...
SET @IsDelete = 1 ELSE SET @IsDelete = 0 create trigger Update_Del on Table for update,delete as if not exists(select 1 from inserted)begin /*inserted表无记录，是删除*/ end else begin /*是更新*/ end go 关键在于Inserted表 触发器语句中使用了两种特殊的表：deleted 表和 ...
-- Azure SQL Database Syntax-- Trigger on an INSERT, UPDATE, or DELETE statement to a table or view (DML Trigger)CREATE[ORALTER]TRIGGER[schema_name. ]trigger_nameON{ table | view } [WITH<dml_trigger_option>[ ,...n ] ] {FOR|AFTER|INSTEADOF} { [INSERT] [ , ] [UPDATE] [ , ...