SQLserver2008 的Between …… AND终于和oracle10g一致了(亲身测试)
2011-08-03 20:44
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[闭区间]Between …… AND
[20,30] 在SQL中的表达为between 20 and 30select top10 from tab
where age between 20 and 30
20 |
22 |
30 |
SQL JOIN - 使用 Join
除了上面的方法,我们也可以使用关键词 JOIN 来从两个表中获取数据。如果我们希望列出所有人的定购,可以使用下面的 SELECT 语句:
SELECT Persons.LastName, Persons.FirstName, Orders.OrderNo FROM Persons [code]INNER JOIN Orders
ON Persons.Id_P = Orders.Id_P
ORDER BY Persons.LastName
[/code]
结果集:
LastName | FirstName | OrderNo |
---|---|---|
Adams | John | 22456 |
Adams | John | 24562 |
Carter | Thomas | 77895 |
Carter | Thomas | 44678 |
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