(1) count the number of classes in the week according to teacher_no
-- SELECTt1.teacher_no, (CASE WEEK WHEN'1' THEN keshu ELSE 0 END) Monday, (CASE WEEK WHEN'2' THEN k)
2022-06-01 Database 我要分享09月28日更新
-- SELECTt1.teacher_no, (CASE WEEK WHEN'1' THEN keshu ELSE 0 END) Monday, (CASE WEEK WHEN'2' THEN k)
2022-06-01 Database 我要分享
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