澳门新萄京SQL Server 存款和储蓄进度的分页

create procedure SqlPager @sqlstr nvarchar(4000卡塔尔, –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


分页方案二:(利用ID大于多少和SELECT TOP分页)功能最高,必要拼接SQL语句

SELECT TOP 页大小 * FROM TestTable WHERE (ID (SELECT MAX(id) FROM
(SELECT TOP 页大小*页数 id FROM 表 ORDER BY id) AS T)) ORDER BY ID

分页方案生龙活虎:(利用Not In和SELECT TOP分页State of Qatar
言辞格局:
SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
(SELECT TOP 20 id
FROM TestTable
ORDER BY id))
ORDER BY ID

分页方案二:(利用ID大于多少和SELECT TOP分页)

set @StartRecord = (@pageIndex-1)*@PageSize + 1 set @EndRecord =
@StartRecord + @pageSize – 1

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

说话情势:

if @pageIndex@TotalPage Set @pageIndex = @TotalPage

任何的方案:若无主键,能够用偶尔表,也能够用方案三做,可是效能会低。
澳门新萄京,建议优化的时候,加上主键和目录,查询功用会提升。

分页方案三:(利用SQL的游标存款和储蓄进程分页卡塔尔(قطر‎

if @OrderType = 0 begin set @strOrder = ‘ order by rowid desc’
–尽管@OrderType是0,就实行降序,那句很关键! end else begin set
@strOrder = ‘ order by rowid asc’ end –继续合成sql语句 set @Sql = @Sql

插入数据:(2万条,用愈来愈多的数据测量检验会明显某个State of Qatar
SET IDENTITY_INSERT TestTable ON

分页方案豆蔻梢头:(利用Not In和SELECT TOP分页State of Qatar

select @TotalPage=@totalRecord –CEILING((@totalRecord+0.0)/@PageSize)

SET IDENTITY_INSERT TestTable OFF

透过SQL 查询深入分析器,呈现比较:笔者的下结论是:

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

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

安顿数据:(2万条,用更加多的数据测量试验会断定某些卡塔尔

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