SQL查询 - 按加密时间最长的文件列表

Question

我需要按文件加载时间过滤db表。

这就是我现在所拥有的：

SELECT url, timings_wait, SUM( timings_wait ) 
FROM request_detail
GROUP BY url
ORDER BY SUM( timings_wait ) DESC 
LIMIT 0 , 30

查询选择所有文件，为每个文件加载加载时间，并按列表的总加载时间对列表进行排序;

请帮助按照每个文件最长的时间排序列表，而不是总加载时间

Answer 1

SELECT url, timings_wait, SUM( timings_wait ) AS s, MAX( timings_wait ) AS m
FROM request_detail
GROUP BY url
ORDER BY MAX( timings_wait ) DESC 
LIMIT 0 , 30

Answer 2

SELECT url, timings_wait, SUM( timings_wait ) 
FROM request_detail
GROUP BY url
ORDER BY timings_wait DESC 
LIMIT 0 , 30