2018-11-02 00:00
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MySQL, Test
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SQL row sum
Given an SQL table ID Amt -- --- 1 100 2 200 3 300 Please write a MySQL statement to produce the following result: ID Amt Total -- --- ----- 1 100 100 2 200 300 3 300 600 And here is an example SQL: SELECT a.ID, a.Amt, sum(b.Amt) AS Total FROM tab AS a JOIN tab AS b ON a.ID >= b.ID GROUP BY 1,2
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