题解 | #Where in 和Not in#
删除记录(一)
http://www.nowcoder.com/practice/d331359c5ca04a3b87f06b97da42159c
delete from exam_record where TIMESTAMPDIFF(minute,start_time,submit_time) < 5 and score <60
删除记录(一)
http://www.nowcoder.com/practice/d331359c5ca04a3b87f06b97da42159c
delete from exam_record where TIMESTAMPDIFF(minute,start_time,submit_time) < 5 and score <60
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