select (sum(case when a.wtfx='买入' then a.cjje end) -sum(case when a.wtfx='卖出'then a.cjje end)) as hj from amountsum a where a.jjname like '%沪港深%'
合计汇总金额SQl
select (sum(case when a.wtfx='买入' then a.cjje end) -sum(case when a.wtfx='卖出'then a.cjje end)) as hj from amountsum a where a.jjname like '%沪港深%'
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转载自blog.csdn.net/LeonAurora/article/details/78053927
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