if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[TI_History_Price]') and OBJECTPROPERTY(id, N'IsTrigger') = 1)
drop trigger [dbo].[TI_History_Price]

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[TU_History_Price]') and OBJECTPROPERTY(id, N'IsTrigger') = 1)
drop trigger [dbo].[TU_History_Price]

