mysql中on有时有筛选的功能
摘要:leetcode中行程和用户 SELECT request_at as 'Day', round(avg(Status!='completed'), 2) as 'Cancellation Rate'FROM trips t JOIN users u1 ON (t.client_id = u1.us
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posted @ 2023-04-05 07:43
posted @ 2023-04-05 07:43
posted @ 2023-04-03 14:39