SQLServer创建触发器，更新表

　在SQLServer，触发器，插入、更新、删除状态：

CREATE TRIGGER t_inms_alarms

　　ON [PHS].[dbo].[AlarmCurrent]

　　FOR INSERT, DELETE

　　AS

　　DECLARE @rows int

　　SELECT @rows = @@rowcount

　　IF @rows = 0

　　return

　　--如果表是插入，则同步更新AlarmsMiddleTbl

　　IF EXISTS(SELECT 1 FROM inserted) AND NOT EXISTS(SELECT 1 FROM deleted)

　　BEGIN

　　INSERT INTO [PHS].[dbo].[AlarmsMiddleTbl]

　　SELECT i.[Id], i.[SequenceId], i.[code], i.[alarmdefineid],

　　CONVERT(varchar,i.[occurTime],120), i.[confirmation], i.[ConfirmationTime],

　　i.[MaintenanceName], i.[MaintenanceProcedure],

　　i.[ClearTime], i.[screen],CONVERT(varchar, getdate(), 120)

　　FROM inserted i

　　END

　　--如果表是更新某个字段，则同步更新AlarmsMiddleTbl

　　IF NOT EXISTS(SELECT 1 FROM inserted) AND EXISTS(SELECT 1 FROM deleted) AND

　　UPDATE(ConfirmationTime)

　　BEGIN

　　INSERT INTO [PHS].[dbo].[AlarmsMiddleTbl]

　　SELECT d.[Id], d.[SequenceId], d.[code], d.[alarmdefineid],

　　CONVERT(varchar,d.[occurTime],120), d.[confirmation], d.[ConfirmationTime],

　　d.[MaintenanceName], d.[MaintenanceProcedure],

　　CONVERT(varchar, getdate(),120), d.[screen],CONVERT(varchar, getdate(), 120)

　　from deleted d

　　END

　　--如果表是删除，则同步更新AlarmsMiddleTbl

　　IF NOT EXISTS(SELECT 1 FROM inserted) AND EXISTS(SELECT 1 FROM deleted)

　　BEGIN

　　INSERT INTO [PHS].[dbo].[AlarmsMiddleTbl]

　　SELECT d.[Id], d.[SequenceId], d.[code], d.[alarmdefineid],

　　CONVERT(varchar,d.[occurTime],120), d.[confirmation], d.[ConfirmationTime],

　　d.[MaintenanceName], d.[MaintenanceProcedure],

　　CONVERT(varchar, getdate(),120), d.[screen],CONVERT(varchar, getdate(), 120)

　　from deleted d

　　END

　　IF @@error <> 0

　　BEGIN

　　RAISERROR('ERROR',16,1)

　　rollback transaction

　　return

　　END