软件测试开发技术SQL Server数据库三种分页方案详尽分析 SQL Server数据库
关键字:SQL Server数据库本文采用三种分页办法,最后对三种分页办法分析了其优缺点。
建立表:
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
插入数据:(2万条,用更多的数据测试会明显一些)
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)
语句形式:
SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 20 id
FROM TestTable
ORDER BY id))
ORDER BY ID
SELECT TOP 页大小 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 页大小*页数 id
FROM 表
ORDER BY id))
ORDER BY ID
分页方案二:
(利用ID大于多少和SELECT TOP分页)
语句形式: