2022年7月29日
ORACLE 集合交集、并集、差集操作
摘要： 交集 WITH V_List1 AS ( SELECT 1 AS NUM FROM DUAL UNION ALL SELECT 3 AS NUM FROM DUAL UNION ALL SELECT 5 AS NUM FROM DUAL UNION ALL SELECT 7 AS NUM FROM 阅读全文
posted @ 2022-07-29 13:59 Robot-Blog 阅读(544) 评论(0) 推荐(0)