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: 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 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 ------------------------------------- 分页方案三:(利用SQL的游标存储过程分页) create procedure XiaoZhengGe @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 其它的方案: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。 建议优化的时候,加上主键和索引,查询效率会提高。 通过SQL 查询分析器,显示比较:我的结论是: 分页方案二:(利用ID大于多少和SELECT TOP分页)效率最高,需要拼接SQL语句 分页方案一:(利用Not In和SELECT TOP分页) 效率次之,需要拼接SQL语句 分页方案三:(利用SQL的游标存储过程分页) 效率最差,但是最为通用 在实际情况中,要具体分析。 SELECT TOP 10 * FROM ( SELECT ROW_NUMBER() OVER (ORDER BY tid) AS RowNumber,* FROM tenderInfo ) A WHERE RowNumber > 10*(2-1) SELECT TOP 20 * FROM tenderInfo WHERE (tid > (SELECT isnull(MAX(tid),0) --如果max为null那么就为0,主要是应对第一页 FROM (SELECT TOP (20*1) tid --页大小*页数 id FROM tenderInfo ORDER BY tid) AS T)) ORDER BY tid
sqlserver 几种常见分页
转自CSDN http://topic.csdn.net/u/20100726/10/ac55bccb-7905-4b50-9056-d19e00c79918.html
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