sql中limit和汇总函数的集合使用

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limit和求和一起

select SUM(A.high) from (select * from minute1_K order by DateTime desc limit 10) A

limit和avg一起

select avg(A.AskVolume1) from (select * from DepthMarketData order by UpdateTime DESC limit 300) A

limit和max一起

select max(A.AskVolume1) from (select * from DepthMarketData order by UpdateTime DESC limit 300) A

limit和min一起

select min(A.AskVolume1) from (select * from DepthMarketData order by UpdateTime DESC limit 300) A

sql中limit和汇总函数的集合使用

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原文地址：http://www.cnblogs.com/hushaojun/p/5487884.html