Sqlserver數(shù)據(jù)庫(kù)分頁(yè)查詢(xún)一直是Sqlserver的短板，閑來(lái)無(wú)事，想出幾種方法，假設(shè)有表ARTICLE,字段ID、YEAR...(其他省略)，數(shù)據(jù)53210條(客戶(hù)真實(shí)數(shù)據(jù)，量不大)，分頁(yè)查詢(xún)每頁(yè)30條，查詢(xún)第1500頁(yè)(即第45001-45030條數(shù)據(jù))，字段ID聚集索引，YEAR無(wú)索引，Sqlserver版本：2008R2

第一種方案、最簡(jiǎn)單、普通的方法：

復(fù)制代碼代碼如下:

SELECT TOP 30 * FROM ARTICLE WHERE ID NOT IN(SELECT TOP 45000 ID FROM ARTICLE ORDER BY YEAR DESC, ID DESC) ORDER BY YEAR DESC,ID DESC

平均查詢(xún)100次所需時(shí)間：45s

第二種方案：

復(fù)制代碼代碼如下:

SELECT * FROM (SELECT TOP 30 * FROM (SELECT TOP 45030 * FROM ARTICLE ORDER BY YEAR DESC, ID DESC) f ORDER BY f.YEAR ASC, f.ID DESC) s ORDER BY s.YEAR DESC,s.ID DESC

平均查詢(xún)100次所需時(shí)間：138S

第三種方案：

復(fù)制代碼代碼如下:

SELECT * FROM ARTICLE w1,

(

SELECT TOP 30 ID FROM

(

SELECT TOP 50030 ID, YEAR FROM ARTICLE ORDER BY YEAR DESC, ID DESC

) w ORDER BY w.YEAR ASC, w.ID ASC

) w2 WHERE w1.ID = w2.ID ORDER BY w1.YEAR DESC, w1.ID DESC

平均查詢(xún)100次所需時(shí)間：21S

第四種方案：

復(fù)制代碼代碼如下:

SELECT * FROM ARTICLE w1

WHERE ID in

(

SELECT top 30 ID FROM

(

SELECT top 45030 ID, YEAR FROM ARTICLE ORDER BY YEAR DESC, ID DESC

) w ORDER BY w.YEAR ASC, w.ID ASC

)

ORDER BY w1.YEAR DESC, w1.ID DESC

平均查詢(xún)100次所需時(shí)間：20S

第五種方案：

復(fù)制代碼代碼如下:

SELECT w2.n, w1.* FROM ARTICLE w1, (SELECT TOP 50030 row_number() OVER (ORDER BY YEAR DESC, ID DESC) n, ID FROM ARTICLE ) w2 WHERE w1.ID = w2.ID AND w2.n > 50000 ORDER BY w2.n ASC

平均查詢(xún)100次所需時(shí)間：15S

查詢(xún)第1000-1030條記錄

第一種方案：

復(fù)制代碼代碼如下:

SELECT TOP 30 * FROM ARTICLE WHERE ID NOT IN(SELECT TOP 1000 ID FROM ARTICLE ORDER BY YEAR DESC, ID DESC) ORDER BY YEAR DESC,ID DESC

平均查詢(xún)100次所需時(shí)間：80s

第二種方案：

復(fù)制代碼代碼如下:

SELECT * FROM ( SELECT TOP 30 * FROM (SELECT TOP 1030 * FROM ARTICLE ORDER BY YEAR DESC, ID DESC) f ORDER BY f.YEAR ASC, f.ID DESC) s ORDER BY s.YEAR DESC,s.ID DESC

平均查詢(xún)100次所需時(shí)間：30S

第三種方案：

復(fù)制代碼代碼如下:

SELECT * FROM ARTICLE w1,

(

SELECT TOP 30 ID FROM

(

SELECT TOP 1030 ID, YEAR FROM ARTICLE ORDER BY YEAR DESC, ID DESC

) w ORDER BY w.YEAR ASC, w.ID ASC

) w2 WHERE w1.ID = w2.ID ORDER BY w1.YEAR DESC, w1.ID DESC

平均查詢(xún)100次所需時(shí)間：12S

第四種方案：

復(fù)制代碼代碼如下:

SELECT * FROM ARTICLE w1

WHERE ID in

(

SELECT top 30 ID FROM

(

SELECT top 1030 ID, YEAR FROM ARTICLE ORDER BY YEAR DESC, ID DESC

) w ORDER BY w.YEAR ASC, w.ID ASC

)

ORDER BY w1.YEAR DESC, w1.ID DESC

平均查詢(xún)100次所需時(shí)間：13S

第五種方案：

復(fù)制代碼代碼如下:

SELECT w2.n, w1.* FROM ARTICLE w1,( SELECT TOP 1030 row_number() OVER (ORDER BY YEAR DESC, ID DESC) n, ID FROM ARTICLE) w2 WHERE w1.ID = w2.ID AND w2.n > 1000 ORDER BY w2.n ASC

平均查詢(xún)100次所需時(shí)間：14S

由此可見(jiàn)在查詢(xún)頁(yè)數(shù)靠前時(shí)，效率3>4>5>2>1，頁(yè)碼靠后時(shí)5>4>3>1>2，再根據(jù)用戶(hù)習(xí)慣，一般用戶(hù)的檢索只看最前面幾頁(yè)，因此選擇3 4 5方案均可，若綜合考慮方案5是最好的選擇，但是要注意SQL2000不支持row_number()函數(shù)，由于時(shí)間和條件的限制沒(méi)有做更深入、范圍更廣的測(cè)試，有興趣的可以仔細(xì)研究下。

以下是根據(jù)第四種方案編寫(xiě)的一個(gè)分頁(yè)存儲(chǔ)過(guò)程：

復(fù)制代碼代碼如下:

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[sys_Page_v2]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)

drop procedure [dbo].[sys_Page_v2]

GO

CREATE PROCEDURE [dbo].[sys_Page_v2]

@PCount int output, --總頁(yè)數(shù)輸出

@RCount int output, --總記錄數(shù)輸出

@sys_Table nvarchar(100), --查詢(xún)表名

@sys_Key varchar(50), --主鍵

@sys_Fields nvarchar(500), --查詢(xún)字段

@sys_Where nvarchar(3000), --查詢(xún)條件

@sys_Order nvarchar(100), --排序字段

@sys_Begin int, --開(kāi)始位置

@sys_PageIndex int, --當(dāng)前頁(yè)數(shù)

@sys_PageSize int --頁(yè)大小

AS

SET NOCOUNT ON

SET ANSI_WARNINGS ON

IF @sys_PageSize < 0 OR @sys_PageIndex < 0

BEGIN

RETURN

END

DECLARE @new_where1 NVARCHAR(3000)

DECLARE @new_order1 NVARCHAR(100)

DECLARE @new_order2 NVARCHAR(100)

DECLARE @Sql NVARCHAR(4000)

DECLARE @SqlCount NVARCHAR(4000)

DECLARE @Top int

if(@sys_Begin <=0)

set @sys_Begin=0

else

set @sys_Begin=@sys_Begin-1

IF ISNULL(@sys_Where,'') = ''

SET @new_where1 = ' '

ELSE

SET @new_where1 = ' WHERE ' + @sys_Where

IF ISNULL(@sys_Order,'') <> ''

BEGIN

SET @new_order1 = ' ORDER BY ' + Replace(@sys_Order,'desc','')

SET @new_order1 = Replace(@new_order1,'asc','desc')

SET @new_order2 = ' ORDER BY ' + @sys_Order

END

ELSE

BEGIN

SET @new_order1 = ' ORDER BY ID DESC'

SET @new_order2 = ' ORDER BY ID ASC'

END

SET @SqlCount = 'SELECT @RCount=COUNT(1),@PCount=CEILING((COUNT(1)+0.0)/'

+ CAST(@sys_PageSize AS NVARCHAR)+') FROM ' + @sys_Table + @new_where1

EXEC SP_EXECUTESQL @SqlCount,N'@RCount INT OUTPUT,@PCount INT OUTPUT',

@RCount OUTPUT,@PCount OUTPUT

IF @sys_PageIndex > CEILING((@RCount+0.0)/@sys_PageSize) --如果輸入的當(dāng)前頁(yè)數(shù)大于實(shí)際總頁(yè)數(shù),則把實(shí)際總頁(yè)數(shù)賦值給當(dāng)前頁(yè)數(shù)

BEGIN

SET @sys_PageIndex = CEILING((@RCount+0.0)/@sys_PageSize)

END

set @sql = 'select '+ @sys_fields +' from ' + @sys_Table + ' w1 '

+ ' where '+ @sys_Key +' in ('

+'select top '+ ltrim(str(@sys_PageSize)) +' ' + @sys_Key + ' from '

+'('

+'select top ' + ltrim(STR(@sys_PageSize * @sys_PageIndex + @sys_Begin)) + ' ' + @sys_Key + ' FROM '

+ @sys_Table + @new_where1 + @new_order2

+') w ' + @new_order1

+') ' + @new_order2

print(@sql)

Exec(@sql)

GO

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