摘要: CAST(SaleQty AS INT)-CAST(ISNULL( Qty,0) AS INT) CountQty select ISNULL( CAST(E.Qty AS INT),0 ) FROM OrderDetail E 空值 需要默认为0 即可 阅读全文
posted @ 2019-05-15 13:16 蜜雪粮液 阅读(7245) 评论(0) 推荐(0)