常用SQL Server分页方式

假设有表ARTICLE,字段ID、YEAR...(其他省略),数据53210条(客户真实数据,量不大),分页查询每页30条,查询第1500页(即第45001-45030条数据),字段ID聚集索引,YEAR无索引,Sqlserver版本:2008R2

第一种方案、最简单、普通的方法:

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

第二种方案:

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

第三种方案:

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

第四种方案:

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

第五种方案:

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

在查询页数靠前时,效率3>4>5>2>1,页码靠后时5>4>3>1>2,再根据用户习惯,一般用户的检索只看最前面几页,因此选择3 4 5方案均可,若综合考虑方案5是最好的选择

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