随笔分类 -  SQL

经典sql
摘要：SELECT a.*,(select now())signUp,CASE WHEN b1.id IS NULL THEN '未报名' ELSE '已报名' END sate, ( SELECT COUNT( 1 ) FROM group_look_applicants c WHERE c.group 阅读全文
posted @ 2021-12-12 16:27 笃灬 阅读(21) 评论(0) 推荐(0) 编辑

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