以下哪项用于左连接( )A.JOINB.RIGHT JOINC.LEFT JOIND.INNER JOIN
以下哪项用于左连接( )
A.JOIN
B.RIGHT JOIN
C.LEFT JOIN
D.INNER JOIN
相关考题:
The number of students who _____________ the English club ______20.A. take part in, is B. join, are C. take part in, are D. join, is
调用以下哪些方法可以使运行状态的线程进入阻塞状态?( )A.start( ),yield( ),sleep( ),join( )和wait( )B.start( ),yield( ),sleep( ),join( ),wait( )和stop( )C.yield( ),sleep( ),join( )和wait( )D.yield( ),sleep( ),join( ),wait( )和stop( )
1、自连接SQL语句关键词为()A.JOIN…ON…B.UNIONC.JOIN…WHERE…D.INNER JOIN…WHERE…