sql 高性能存储过程分页

USE [Lyjjr]
GO
/****** Object:  StoredProcedure [dbo].[P_ViewPage]    Script Date: 05/29/2015 17:18:56 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
    
ALTER PROC [dbo].[P_ViewPage]    
@TableName VARCHAR(200),     --表名    
@FieldList VARCHAR(2000),    --显示列名。假设是所有字段则为*    
@PrimaryKey VARCHAR(100),    --单一主键或唯一值键    
@Where VARCHAR(4000),        --查询条件 不含'where'字符。如id>10 and len(userid)>9    
@Order VARCHAR(1000),        --排序 不含'order by'字符，如id asc,userid desc。必须指定asc或desc    
--注意当@SortType=3时生效，记住一定要在最后加上主键，否则会让你比較郁闷    
@SortType INT,               --排序规则 1:正序asc 2:倒序desc 3:多列排序方法    
@RecorderCount INT,          --记录总数 0:会返回总记录    
@PageSize INT,               --每页输出的记录数    
@PageIndex INT,              --当前页数    
@TotalCount INT OUTPUT,      --记返回总记录    
@TotalPageCount INT OUTPUT   --返回总页数   
AS    
SET NOCOUNT ON    
IF ISNULL(@TotalCount,'') = '' SET @TotalCount = 0    
SET @Order = RTRIM(LTRIM(@Order))    
SET @PrimaryKey = RTRIM(LTRIM(@PrimaryKey))    
SET @FieldList = REPLACE(RTRIM(LTRIM(@FieldList)),' ','')    
WHILE CHARINDEX(', ',@Order) > 0 OR CHARINDEX(' ,',@Order) > 0    
BEGIN    
SET @Order = REPLACE(@Order,', ',',')    
SET @Order = REPLACE(@Order,' ,',',')    
END    
IF ISNULL(@TableName,'') = '' OR ISNULL(@FieldList,'') = ''    
OR ISNULL(@PrimaryKey,'') = ''    
OR @SortType < 1 OR @SortType >3    
OR @RecorderCount  < 0 OR @PageSize < 0 OR @PageIndex < 0    
BEGIN    
PRINT('ERR_00')    
RETURN    
END    
IF @SortType = 3    
BEGIN    
IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC')    
BEGIN PRINT('ERR_02') RETURN END    
END    
DECLARE @new_where1 VARCHAR(2000)    
DECLARE @new_where2 VARCHAR(2000)    
DECLARE @new_order1 VARCHAR(1000)    
DECLARE @new_order2 VARCHAR(1000)    
DECLARE @new_order3 VARCHAR(1000)    
DECLARE @Sql VARCHAR(8000)    
DECLARE @SqlCount NVARCHAR(4000)    
IF ISNULL(@where,'') = ''    
BEGIN    
SET @new_where1 = ' '    
SET @new_where2 = ' WHERE  '    
END    
ELSE    
BEGIN    
SET @new_where1 = ' WHERE ' + @where    
SET @new_where2 = ' WHERE ' + @where + ' AND '    
END    
IF ISNULL(@order,'') = '' OR @SortType = 1  OR @SortType = 2    
BEGIN    
IF @SortType = 1    
BEGIN    
SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' ASC'    
SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' DESC'    
END    
IF @SortType = 2    
BEGIN    
SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' DESC'    
SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' ASC'    
END    
END    
ELSE    
BEGIN    
SET @new_order1 = ' ORDER BY ' + @Order    
END    
IF @SortType = 3 AND  CHARINDEX(','+@PrimaryKey+' ',','+@Order)>0    
BEGIN    
SET @new_order1 = ' ORDER BY ' + @Order    
SET @new_order2 = @Order + ','    
SET @new_order2 = REPLACE(REPLACE(@new_order2,'ASC,','{ASC},'),'DESC,','{DESC},')    
SET @new_order2 = REPLACE(REPLACE(@new_order2,'{ASC},','DESC,'),'{DESC},','ASC,')    
SET @new_order2 = ' ORDER BY ' + SUBSTRING(@new_order2,1,LEN(@new_order2)-1)    
IF @FieldList <> '*'    
BEGIN    
SET @new_order3 = REPLACE(REPLACE(@Order + ',','ASC,',','),'DESC,',',')    
SET @FieldList = ',' + @FieldList    
WHILE CHARINDEX(',',@new_order3)>0    
BEGIN    
IF CHARINDEX(SUBSTRING(','+@new_order3,1,CHARINDEX(',',@new_order3)),','+@FieldList+',')>0    
BEGIN    
SET @FieldList =    
@FieldList + ',' + SUBSTRING(@new_order3,1,CHARINDEX(',',@new_order3))    
END    
SET @new_order3 =    
SUBSTRING(@new_order3,CHARINDEX(',',@new_order3)+1,LEN(@new_order3))    
END    
SET @FieldList = SUBSTRING(@FieldList,2,LEN(@FieldList))    
END    
END    
SET @SqlCount = 'SELECT @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/'    
+ CAST(@PageSize AS VARCHAR)+') FROM ' + @TableName + @new_where1    
IF @RecorderCount  = 0    
BEGIN    
EXEC SP_EXECUTESQL @SqlCount,N'@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT',    
@TotalCount OUTPUT,@TotalPageCount OUTPUT    
END    
ELSE    
BEGIN    
SELECT @TotalCount = @RecorderCount    
END    
IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize)    
BEGIN    
SET @PageIndex =  CEILING((@TotalCount+0.0)/@PageSize)    
END    
IF @PageIndex = 1 OR @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)    
BEGIN    
IF @PageIndex = 1 --返回第一页数据    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '    
+ @TableName + @new_where1 + @new_order1    
END    
IF @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)  --返回最后一页数据    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('    
+ 'SELECT TOP ' + STR(ABS(@PageSize*@PageIndex-@TotalCount-@PageSize))    
+ ' ' + @FieldList + ' FROM '    
+ @TableName + @new_where1 + @new_order2 + ' ) AS TMP '    
+ @new_order1    
END    
END    
ELSE    
BEGIN    
IF @SortType = 1  --仅主键正序排序    
BEGIN    
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '    
+ @TableName + @new_where2 + @PrimaryKey + ' > '    
+ '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '    
+ STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey    
+ ' FROM ' + @TableName    
+ @new_where1 + @new_order1 +' ) AS TMP) '+ @new_order1    
END    
ELSE  --反向检索    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('    
+ 'SELECT TOP ' + STR(@PageSize) + ' '    
+ @FieldList + ' FROM '    
+ @TableName + @new_where2 + @PrimaryKey + ' < '    
+ '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '    
+ STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey    
+ ' FROM ' + @TableName    
+ @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2    
+ ' ) AS TMP ' + @new_order1    
END    
END    
IF @SortType = 2  --仅主键反序排序    
BEGIN    
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '    
+ @TableName + @new_where2 + @PrimaryKey + ' < '    
+ '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '    
+ STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey    
+' FROM '+ @TableName    
+ @new_where1 + @new_order1 + ') AS TMP) '+ @new_order1    
END    
ELSE  --反向检索    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ('    
+ 'SELECT TOP ' + STR(@PageSize) + ' '    
+ @FieldList + ' FROM '    
+ @TableName + @new_where2 + @PrimaryKey + ' > '    
+ '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '    
+ STR(@TotalCount-@PageSize*@PageIndex) + ' ' + @PrimaryKey    
+ ' FROM ' + @TableName    
+ @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2    
+ ' ) AS TMP ' + @new_order1    
END    
END    
IF @SortType = 3  --多列排序。必须包括主键，且放置最后。否则不处理    
BEGIN    
IF CHARINDEX(',' + @PrimaryKey + ' ',',' + @Order) = 0    
BEGIN PRINT('ERR_02') RETURN END    
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2  --正向检索    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '    
+ 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '    
+ ' SELECT TOP ' + STR(@PageSize*@PageIndex) + ' ' + @FieldList    
+ ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '    
+ @new_order2 + ' ) AS TMP ' + @new_order1    
END    
ELSE  --反向检索    
BEGIN    
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '    
+ 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM ( '    
+ ' SELECT TOP ' + STR(@PageSize*@PageIndex) + ' ' + @FieldList    
+ ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '    
+ @new_order2 + ' ) AS TMP ' + @new_order1    
END    
END    
END    
EXEC(@Sql) 


   
    

调用方法：

       

 /// <summary>
        /// 存储过程分页
        /// </summary>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <param name="where"></param>
        /// <param name="order"></param>
        /// <param name="sortType"></param>
        /// <param name="totalCount"></param>
        /// <returns></returns>
        public DataTable GetLineRoadPage(int pageIndex, int pageSize, string where, string order, int sortType, out int totalCount)
        {
            totalCount = 0;
            SqlParameter[] parameters = {
					new SqlParameter("@TableName", SqlDbType.VarChar,200),
                    new SqlParameter("@FieldList", SqlDbType.VarChar,2000),
                    new SqlParameter("@PrimaryKey", SqlDbType.VarChar,100),
					new SqlParameter("@Where", SqlDbType.VarChar,2000),
					new SqlParameter("@Order", SqlDbType.VarChar,1000),
					new SqlParameter("@SortType", SqlDbType.Int,4),
					new SqlParameter("@RecorderCount", SqlDbType.Int,4),
					new SqlParameter("@PageSize", SqlDbType.Int,4),
					new SqlParameter("@PageIndex", SqlDbType.Int,4),
                    new SqlParameter("@TotalCount", SqlDbType.Int,4),
                    new SqlParameter("@TotalPageCount", SqlDbType.Int,4)};
            parameters[0].Value = "vLineRoad";
            parameters[1].Value = "[LrID],[Title],[SettlePrice],[MarketPrice],[ImageUrls],[LineType],[TraficTool],[NeedDays],[IsShow],[IsRecommend],[ThemID],[SplID],[LinePriceType],[IsUseTicket],[NeedNights],[ProductCode],[ChildrenPrice],[CreateTime],[UpdateTime],[SpLnName],[SupplierName],[Tel],[Dates]";
            parameters[2].Value = "LrID";
            parameters[3].Value = where;
            parameters[4].Value = order;
            parameters[5].Value = sortType;
            parameters[6].Value = 0;
            parameters[7].Value = pageSize;
            parameters[8].Value = pageIndex;
            parameters[9].Direction = ParameterDirection.Output;
            parameters[10].Direction = ParameterDirection.Output;
            DataTable dt = DbHelperSQL.RunProcedureToDataTable("P_ViewPage", parameters);
            totalCount = Convert.ToInt32(parameters[9].Value);
            return dt;
        }