更改参数的值 max_execution_time 在里面 php.ini

max_execution_time = 360   ;Execution time in seconds

你可以使用 subquery 和; JOIN

SELECT t1.name, t2.userId , t2.nbr_entries 
FROM generic t1
JOIN
(SELECT userId ,COUNT(*) as nbr_entries FROM info GROUP BY userId) t2
ON t1.userId = t2.userId ORDER BY t2.nbr_entries DESC;