一个分页存储过程，Sql2005及以上版本支持（求更高效的分页算法）-优快云博客

本文深入探讨了SQL分页查询的实现原理及优化方法，包括如何使用窗口函数实现高效分页，避免全表扫描，减少数据库负载。通过实例演示，帮助开发者提升查询性能。

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/****** Object:  StoredProcedure [dbo].[PageQuery]    Script Date: 04/13/2012 14:26:57 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		<Author,,Name>
-- Create date: <Create Date,,>
-- Description:	<Description,,>
-- =============================================
CREATE PROCEDURE [dbo].[Page_Query]
	@TableName   NVARCHAR(255),			-- 表名
	@Fields NVARCHAR(1000) = '*',		-- 需要返回的列
	@OrderFields NVARCHAR(255)='',		-- 排序的字段名，不带ORDER BY 关键字，必填
	@PageSize   INT = 10,				-- 页尺寸
	@PageIndex  INT = 1,				-- 页码
	@Where  NVARCHAR(1500) = '',		-- 查询条件 (注意: 不要加 where)
	@NeedCount BIT = 0,
	@RecordCount INT OUTPUT
AS
BEGIN
	DECLARE @ExceSql NVARCHAR(MAX)

	IF @Where !=''
	  SET @Where =' WHERE ' + @Where

	SET @ExceSql='SELECT * FROM (SELECT ROW_NUMBER() OVER ( ORDER BY ' + @OrderFields + ') AS pos,' + @Fields + ' FROM ' + @TableName + @Where + ') AS sp WHERE pos BETWEEN '+STR( ( @PageIndex - 1 ) * @PageSize + 1 ) + ' AND ' + STR( @PageIndex * @PageSize )
	EXEC (@ExceSql)

	SET @RecordCount = 0
	IF @NeedCount = 1
	BEGIN
		SET @ExceSql='SELECT @RecordCount=COUNT(1) FROM ' + @TableName + @Where
		EXEC sp_executesql @ExceSql, N'@RecordCount INT OUTPUT', @RecordCount OUTPUT
	END
END