从嵌套选择T-SQL中选择
发布时间:2020-05-25 03:38:59 所属栏目:MsSql 来源:互联网
导读:我希望通过在内部查询中选择它们来修改数据 并计算其中一个修改.. 它给出错误.. select count(cvs) from( select cvs, (case Citycode when 123 then test else other end) as CityName , (case ProductCode when 000 then test3 whe
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我希望通过在内部查询中选择它们来修改数据
select count(cvs) from ( select cvs,(case Citycode when 123 then 'test' else 'other' end) as CityName,(case ProductCode when '000' then 'test3' when 'ss' then 'xtr' else 'ddd' end) as CardName from Applications ) 解决方法您需要为子查询提供一个别名:select count(x.cvs) from ( select cvs,(case ProductCode when '000' then 'test3' when 'ss' then 'xtr' else 'ddd' end) as CardName from Applications ) x (编辑:安卓应用网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
