查詢陳述句:select * from student where student.sno not in(select group0.sno,group0.sno1,group0.sno2,group0.sno3 from group0)
提示出錯!!
uj5u.com熱心網友回復:
只能用exists才可以指定多列uj5u.com熱心網友回復:
可以說說exists怎么使用嗎?
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標籤:疑難問題
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