题解 | #更新记录(二)#
更新记录(二)
http://www.nowcoder.com/practice/0c2e81c6b62e4a0f848fa7693291defc
update exam_record
set submit_time='2099-01-01 00:00:00',score=0
where start_time<'2021-09-01' and submit_time is null
更新记录(二)
http://www.nowcoder.com/practice/0c2e81c6b62e4a0f848fa7693291defc
update exam_record
set submit_time='2099-01-01 00:00:00',score=0
where start_time<'2021-09-01' and submit_time is null
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