select * from a where @a='050021'
改为declare @sql varchar(200)
set @sql = 'select * from a where ' + @a + '=cast(050021 as varchar)'
exec (@sql)试试?
改为declare @sql varchar(200)
set @sql = 'select * from a where ' + @a + '=cast(050021 as varchar)'
exec (@sql)试试?
解决方案 »
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