题解 | #插入记录（二）#
插入记录（二）
http://www.nowcoder.com/practice/9681abf28745468c8adacb3b029a18ce
INSERT INTO exam_record_before_2021 (uid, exam_id, start_time, submit_time, score) SELECT uid, exam_id, start_time, submit_time, score FROM exam_record WHERE YEAR(submit_time) < 2021;
