通用分页存储过程

CREATE PROC P_viewPage

@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

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

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

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

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

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

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

PRINT(@Sql)

EXEC(@Sql)

来源：https://www.cnblogs.com/xfxr/archive/2009/07/27/1532349.html

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