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第一種方法
SELECT *
FROM ( SELECT ROW_NUMBER() OVER (ORDER BY [reqno]) AS [rownum], * FROM [dbo].[csreqshortno] ) a where a.rownum between 110010 and 110030 大概需要0～5秒
第二種方法
DECLARE @PageLowerBound int
DECLARE @PageUpperBound int -- Set the page bounds SET @PageLowerBound = 10 SET @PageUpperBound = 30 -- Create a temp table to store the select results Create Table #PageIndex ( [IndexId] int IDENTITY (1, 1) NOT NULL, [Id] varchar(18) ) -- Insert into the temp table declare @SQL as nvarchar(4000) SET @SQL = 'INSERT INTO #PageIndex (Id)' SET @SQL = @SQL + ' SELECT' SET @SQL = @SQL + ' TOP ' + convert(nvarchar, @PageUpperBound) SET @SQL = @SQL + ' [reqno]' SET @SQL = @SQL + ' FROM dbo.csreqshortno' SET @SQL = @SQL + ' ORDER BY reqno' -- Populate the temp table exec sp_executesql @SQL -- Return paged results
SELECT O.* FROM dbo.csreqshortno O, #PageIndex PageIndex WHERE PageIndex.IndexID > @PageLowerBound AND O.reqno = PageIndex.[Id] ORDER BY PageIndex.IndexID drop table #PageIndex 大概需要0～3秒
第二種方法相對比第一種方法效率高一點,不需要在全表插入列[rownum],在行數選擇靠前時訪問效率高。
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