题目:在SQL SERVER中,查询STUDENTl表XB为空的记录l贝0 SQL语句为 ( )
2024-11-13
ASEI.ECT X FROM STUDENTlWHERE XBIS NOTNULL
BSELECT*FROM STUDENTlWHERE XBISNULL
CSELECT*FROM STUDENTlWHERE XB-NULL
D以上都不是
BSELECT*FROM STUDENTlWHERE XBISNULL
CSELECT*FROM STUDENTlWHERE XB-NULL
D以上都不是
正确答案:B
试题解析:暂无