单个触发器判断Insert/Delete/Update操

 

问题已解决，分享之：
插入操作（Insert）：Inserted表有数据，Deleted表无数据
删除操作（Delete）：Inserted表无数据，Deleted表有数据
更新操作（Update）：Inserted表有数据（新数据），Deleted表有数据（旧数据）


if exists(select 1 from inserted) and exists(select 1 from inserted) --更新
【update tb_search】 
else if exists(select 1 from inserted) --插入  
【inserted tb_search】
else --删除
【delete tb_search】

感谢各位热情讨论！
阿里噶多

ALTER TRIGGER [triger_Video]
  ON [dbo].[tb_Video]
  FOR INSERT,DELETE,UPDATE
  AS
BEGIN
  IF EXISTS(SELECT 1 FROM deleted) AND EXISTS(SELECT 1 FROM inserted)
  BEGIN
  UPDATE sqlstatement
  END
  ELSE IF EXISTS(SELECT 1 FROM inserted) 
  BEGIN
  INSERT sqlstatement
  END  
  ELSE
  BEGIN
  DELETE sqlstatement
  END
END

 

现在项目经理要求必须写在一起

SQL code

    
    
    
    

     
     
     
     ALTER TRIGGER [triger_Video]   ON [dbo].[tb_Video]   FOR INSERT,DELETE,UPDATE   AS BEGIN   IF EXISTS(SELECT 1 FROM deleted) AND EXISTS(SELECT 1 FROM inserted)   BEGIN   UPDATE sqlstatement   END   ELSE IF EXISTS(SELECT 1 FROM inserted)    BEGIN   INSERT sqlstatement   END     ELSE   BEGIN   DELETE sqlstatement   END END
    
    
    
    

 

 

 

------------------------------------------------------------------

SQL code

   
   
   
   

    
    
    
     
    
    
    
    create trigger triger_Video on
    
    
    
     tb_Video for insert,update,delete
    
    
    
     
    
    
    
    as
    
    
    
     
    
    
    
    if exists(select 1 from inserted )and not exists(select 1 from
    
    
    
     deleted) insert tb_Search select UserId,Id,Title from inserted --如果表 tb_Search中的id是自增列
    
    
    
     
    
    
    
    else
    
    
    
     if not exists(select 1 from
    
    
    
     deleted) update
    
    
    
     tb_Search set TableName=i.UserId, Title=
    
    
    
    i.title from
    
    
    
     tb_Search a,inserted i where a.SourceId=
    
    
    
    a.id else
    
    
    
     delete
    
    
    
     tb_Search from
    
    
    
     tb_Search a,deleted d where a.SourceId=
    
    
    
    d.id go
    
    
    
     
   
   
   
   

 

-----------------------------------------------------------

SQL code

   
   
   
   

    
    
    
     
    
    
    
    create trigger triger_Video on
    
    
    
     tb_Video for insert,update,delete
    
    
    
     
    
    
    
    as
    
    
    
     
    
    
    
    if exists(select 1 from inserted )and not exists(select 1 from
    
    
    
     deleted) insert tb_Search select UserId,Id,Title from inserted --如果表 tb_Search中的id是自增列
    
    
    
     
    
    
    
    else
    
    
    
     if not exists(select 1 from
    
    
    
     deleted) update
    
    
    
     tb_Search set TableName=i.UserId, Title=
    
    
    
    i.title from
    
    
    
     tb_Search a,inserted i where a.SourceId=
    
    
    
    a.id else
    
    
    
     delete
    
    
    
     tb_Search from
    
    
    
     tb_Search a,deleted d where a.SourceId=
    
    
    
    d.id go
    
    
    
     
   
   
   
   

 

http://topic.csdn.net/u/20090921/16/1bc89a33-8aef-40e3-9285-34f8ba7b1f45.html