多个Select语句嵌套

多个Select语句嵌套,听说最可能是七层,没试过,这里是三层。sql SELECT inck.ToCK as 仓库, chanpin.CPno AS 产品编号, chanpin.CPpinpai AS 产品品牌, chanpin.CPname AS 产品名称, chanpin.CPKind AS 产品规格, chanpin.CPunit as 计数单位, inck.INyouxiao as 有效
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