关于sql的问题
select a.* , b.score [课程'01'的分数],c.score [课程'02'的分数] from Student a , SC b , SC c
where a.S# = b.S# and a.S# = c.S# and b.C# = '01' and c.C# = '02' and b.score > c.score
这句话是什么意思,原题链接www.360doc.com/content/12/0414/19/7427585_203593137.shtml
谢谢大神