摘要:
答案: SELECT student,SUM(CASE course WHEN '语文'THEN score END)AS '语文',SUM(CASE course WHEN '数学'THEN score END)AS '数学',SUM(CASE course WHEN '英语'THEN score 阅读全文
posted @ 2018-11-12 14:31
燃+飘
阅读(104)
评论(0)
推荐(0)
浙公网安备 33010602011771号