题解 | #Where in 和Not in#
插入记录（二）
http://www.nowcoder.com/practice/9681abf28745468c8adacb3b029a18ce
INSERT INTO exam_record_before_2021
SELECT NULL,uid, exam_id, start_time, submit_time, score
FROM exam_record
WHERE submit_time < '2021-01-01 00:00:00';
insert into exam_record_before_2021 select null,uid,exam_id,start_time,submit_time,score from exam_record where submit_time < '2021-01-01 00:00:00'
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