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指定字段求和,该如何解决

WBOY
Release： 2016-06-13 10:45:24
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指定字段求和

想求出韩姓用户，已经上传文件大小。
怎么写啊？谢谢啊

------解决方案--------------------
select SUM(daxiao) as size where username like '韩%';
------解决方案--------------------
as size

给他起个外号叫size.

探讨

size是什么啊
Related labels：
select size where
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