标签: mysql
我有两个表,如果在tbsale表中不存在,如何显示数据?
答案 0 :(得分:0)
您可以在SQL中使用EXPECT:
Player
答案 1 :(得分:0)
尝试此查询:
SELECT Employ_Id, Employ_Name FROM tbemploy WHERE tbemploy.Employ_Id NOT IN (SELECT Employ_Id FROM tbsale)