sql分页存储过程

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   CREATE PROC P_viewPage
     /*
     nzperfect 高效通用分页存储过程(双向检索)
     敬告：适用于单一主键或存在唯一值列的表或视图
     ps:Sql语句为8000字节,调用时请注意传入参数及sql总长度不要超过指定范围
     ps:多列排序时，请自行加索引
     */
     @TableName VARCHAR(200),     --表名
     @FieldList VARCHAR(2000),    --显示列名，如果是全部字段则为*
     @PrimaryKey VARCHAR(100),    --单一主键或唯一值键
     @Where VARCHAR(2000),        --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，否则会让你比较郁闷
     @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(1000)
     DECLARE @new_where2 VARCHAR(1000)
     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 * FROM (SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '
                     + @TableName + @new_where1 + @new_order1 +') AS TMP ' + @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，必须包含主键，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(@TotalCount-@PageSize *@PageIndex+@PageSize) + ' ' + @FieldList
                             + ' FROM ' + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
                             + @new_order1 + ' ) AS TMP ' + @new_order1
                         END
             END
         END
     PRINT(@SQL)
     EXEC(@Sql)