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一个通用的分页查询语句

2009-04-15 11:57 381 查看
今天没事翻翻书,看到这条查询语句,感觉思路简单,用起来也方便,就记下了,哈哈,虽然在业务层里或者数据层中实现分页也都可行,还是拿sql方便点
1select top pagesize *
2from 表
3where 条件 and id not in
4(select top pagesize * (currentpageindex-1) id
5 from 表
6 where 条件 order by 排序条件
7)
8

简单的sql,仔细想想就明白了
发现sqlserver2005中,增加了新的函数row_numer()可以返回行号,则可以利用此函数来进行分页

ROW_NUMBER() OVER (order by orderDate)as RowNumber

-------------------

1USE AdventureWorks;
2GO
3Select SalesOrderID, orderDate,
4ROW_NUMBER() OVER (order by orderDate)as RowNumber
5FROM Sales.SalesOrderHeader
6GO
7

功能:在返回的记录集中新增加一计数列,
ROW_NUMBER() OVER (order by orderDate)as RowNumber 以OrderDate的从小到大的顺序(顺序可以改)排序
RowNumber 按照排序结果顺序从1开始记数编号

结果如下:

SalesOrderID orderDate RowNumber
--------- ---------------- ---------
43659 2001-07-01 00:00:00.000 1
43660 2001-07-01 00:00:00.000 2
43661 2001-07-01 00:00:00.000 3
43662 2001-07-01 00:00:00.000 4
43663 2001-07-01 00:00:00.000 5
43664 2001-07-01 00:00:00.000 6
43665 2001-07-01 00:00:00.000 7
43666 2001-07-01 00:00:00.000 8
43667 2001-07-01 00:00:00.000 9
43668 2001-07-01 00:00:00.000 10
43669 2001-07-01 00:00:00.000 11
43670 2001-07-01 00:00:00.000 12
43671 2001-07-01 00:00:00.000 13
43672 2001-07-01 00:00:00.000 14
43673 2001-07-01 00:00:00.000 15
43674 2001-07-01 00:00:00.000 16
43675 2001-07-01 00:00:00.000 17
43676 2001-07-01 00:00:00.000 18
43677 2001-07-01 00:00:00.000 19
43678 2001-07-01 00:00:00.000 20
43679 2001-07-01 00:00:00.000 21
43680 2001-07-01 00:00:00.000 22
43681 2001-07-01 00:00:00.000 23
43682 2001-07-01 00:00:00.000 24
43683 2001-07-01 00:00:00.000 25
43684 2001-07-01 00:00:00.000 26
43685 2001-07-01 00:00:00.000 27
43686 2001-07-01 00:00:00.000 28
43687 2001-07-01 00:00:00.000 29
43688 2001-07-01 00:00:00.000 30
43689 2001-07-01 00:00:00.000 31
43690 2001-07-01 00:00:00.000 32
43691 2001-07-01 00:00:00.000 33
43692 2001-07-01 00:00:00.000 34
43693 2001-07-01 00:00:00.000 35
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