SQL Server 分页查询

创建表

CREATE TABLE [TestTable] (
 [ID] [int] IDENTITY (1, 1) NOT NULL ,
 [FirstName] [nvarchar] (100) COLLATE Chinese_PRC_CI_AS NULL ,
 [LastName] [nvarchar] (100) COLLATE Chinese_PRC_CI_AS NULL ,
 [Country] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
 [Note] [nvarchar] (2000) COLLATE Chinese_PRC_CI_AS NULL 
) ON [PRIMARY]
GO

　　

添加数据

SET IDENTITY_INSERT TestTable ON
declare @i int
set @i=1
while @i<=20000
begin
    insert into TestTable([id], FirstName, LastName, Country,Note) 
    values(@i, 'FirstName_XXX','LastName_XXX','Country_XXX','Note_XXX')
    set @i=@i+1
end
SET IDENTITY_INSERT TestTable OFF

　　

分页方案一：(利用Not In和SELECT TOP分页)

SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
          (SELECT TOP 20 id
         FROM TestTable
         ORDER BY id))
ORDER BY ID

SELECT TOP [Page_Size] *
FROM [Table_Name]
WHERE (ID NOT IN
          (SELECT TOP [Page_Size * Page_Num] Id
         FROM [Table_Name]
         ORDER BY Id))
ORDER BY ID

 

分页方案二：(利用ID大于多少和SELECT TOP分页）

SELECT TOP 10 *
FROM TestTable
WHERE (ID >
          (SELECT MAX(id)
         FROM (SELECT TOP 20 id
                 FROM TestTable
                 ORDER BY id) AS T))
ORDER BY ID

SELECT TOP [Page_Size] *
FROM [Table_Name]
WHERE (ID >
          (SELECT MAX(id)
         FROM (SELECT TOP [Page_Size * Page_Num] id
                 FROM [Table_name]
                 ORDER BY id) AS T))
ORDER BY ID

 

分页方案三：(利用SQL的游标存储过程分页)

if (exists (select * from sys.objects where name = 'testpage'))
drop proc testpage
go
create procedure testpage
@sqlstr nvarchar(4000), --查询字符串
@currentpage int, --第N页
@pagesize int --每页行数
as
set nocount on
declare @P1 int, --P1是游标的id
 @rowcount int
exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1,@rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) as 总页数--,@rowcount as 总行数,@currentpage as 当前页 
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize 
exec sp_cursorclose @P1
set nocount off

执行存储过程

exec testpage 'select * from TestTable', 2, 10 

 

 

如果没有主键，可以用临时表，也可以用方案三做，但是效率会低。
建议优化，加上主键和索引，查询效率会提高。