exec sp_rename 'dbo.Base_DNCompare.Sch5S', SCH5S, 'COLUMN'
go

exec sp_rename 'dbo.Base_DNCompare.Sch10S', SCH10S, 'COLUMN'
go
alter table dbo.WBS_UnitWork
    drop constraint FK_WBS_UnitWork_Base_Unit_Unit
go

alter table dbo.HJGL_Pipeline
    drop constraint FK_HJGL_Pipeline_Base_Unit
go

alter table dbo.WBS_UnitWork
    alter column UnitId nvarchar(300) null
go
alter table dbo.HJGL_Pipeline
    alter column UnitId nvarchar(300) null
go