if exists (select * from sysobjects where id = object_id(N'[dbo].[UserName_Lookup]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[UserName_Lookup]
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在这个SQL语句中,N是什么意思?
if exists (select * from sysobjects where id = object_id(N'[dbo].[UserName_Lookup]') and OBJECTPROPERTY(id, N'IsUserTable') = 1) drop table [dbo].[UserName_Lookup]