【单选题】左外连接中的左表是放在什么位置
A.
放置在 left outer join 的左边
B.
放置在 left outer jion 的左边
C.
放置在 right outer join 的右边
【单选题】在SQL语言中,左外连接查询的连接命令是( )
【简答题】INNER JOIN代表___连接;LEFT OUTER JION代表___连接。
【单选题】Why is the woman unable to contact a colleague?
A.
He is at the office on Falcon Street.
C.
He has switched off his cell phone.
D.
He is in a discussion.