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if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[FK_帳單明細_入住單]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1)
ALTER TABLE [dbo].[帳單明細] DROP CONSTRAINT FK_帳單明細_入住單
GO
if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[FK_入住單_客房信息]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1)
ALTER TABLE [dbo].[入住單] DROP CONSTRAINT FK_入住單_客房信息
GO
if exists (select * from dbo.sysobjects where id = object_id(N\'[dbo].[FK_客房信息_客房類型]\') and OBJECTPROPERTY(id, N\'IsForeignKey\') = 1)
ALTER TABLE [dbo].[客房信息] DROP CONSTRAINT FK_客房信息_客房類型
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