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1----三张表一起查询：
select * from EnglishScores,Scores,StuInfor
2-------update-set和delete-where
原来的表：
update-set：
第一步：
insert into EnglishScores (StuName,Scores,StuId)values(‘牛逼‘,110,‘5‘)
第二步：
update EnglishScores set StuName=‘Tomposn‘ where StuId=5
可以看到,东西已经改变了.
delete-where
delete EnglishScores where StuId=5
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3-----了解分页查询：ROW_NUMBER()over(order by Scores)
--ROW_NUMBER() 就是生成一个有顺序的行号,而他生成顺序的标准,就是后面紧跟的OVER(ORDER BY ID) --还必须添加OVER语句以便告诉SQL Server你希望怎样添加行序号。
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select * from EnglishScores order by Scores
select * from
(select StuId,ROW_NUMBER()over(order by Scores) as row from EnglishScores) EC//EC是表的别名
where row between 1 and 4
还可以查询多个
1 select * from 2 (select StuId,Scores,ROW_NUMBER()over(order by Scores) as row from EnglishScores) EC 3 where row between 1 and 4
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原文地址：http://www.cnblogs.com/anwser-jungle/p/4906493.html
