在表中找出與輸入值相等的字段名稱

 

 

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO

 

ALTER    procedure FindFieldByOneNvarchar @tablename Nvarchar(20),@OneRowSQL Nvarchar(4000),@InOneNvarchar Nvarchar(20)
as
/*
在一個表中找出與@InOneNvarchar相同值的字段名稱
調用示例:Exec FindFieldByOneNvarchar N'default_setting',N'select * from default_setting',2
*/
declare @name nvarchar(100)
declare @StrSQL nvarchar(4000)
declare @Fresult nvarchar(200)

declare Rowsetcur cursor for  select name from syscolumns where id=object_id(@tablename,N'Table')
open  Rowsetcur
fetch next From Rowsetcur into @name
while @@fetch_status=0
begin
  set @StrSQL=N'select @Fresult=cast(a.['+@name+'] as Nvarchar(200)) from ('+ @OneRowSQL+') a '
--print @strSQL
  Execute SP_executesql @StrSQL,N'@Fresult Nvarchar(200) out',@Fresult out
 --print @Fresult+':'+@InOneNvarchar
  if @@error<>0 begin print @name+':error!'  break end
 
  if @Fresult=@InOneNvarchar
    print @name+';'
  fetch next from Rowsetcur into @name 
 end

close Rowsetcur
deallocate Rowsetcur

 

GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO