delete a.Employee_LastName, a.Employee_Firstname
FROM EMPLOYEE a JOIN DEPARTMENT b on a.Department_ID = b.Department_ID
where b.Department_Name='Sales'
Group by a.Employee_LastName, a.Employee_Firstname, b.Department_Name
你能解释一下我做错了什么吗?错误(在 sql server 2008 中):消息 102,级别 15,状态 1,第 1 行“,”附近的语法不正确。