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我有select返回的表，如何计算field2的总和，其中f1相似？

[英]I have table returned by select, how to calculate sum of field2, where f1 is similar?

原文 2010-02-17 13:20:44 4 1 mysql

f1              f2
guest           100
tester          0
user            200
user            200

desired result:想要的结果：

f1              f2
guest           100
user            400
tester          0

1 个解决方案

SELECT f1, SUM(f2)
FROM your_table
GROUP BY f1

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