摘要: https://www.cnblogs.com/ipusr/articles/587271.html SELECT DECODE_ORACLE(t.grade_id,1,'一年级',2,'二年级',3,'三年级') AS '年级', max(DECODE_ORACLE(t.subject_name, 阅读全文
posted @ 2022-03-15 11:08 小狗吃月亮 阅读(504) 评论(0) 推荐(0) 编辑