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两个sql server 2000的通用分页存储过程

王朝mssql·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

第一个支持唯一主键,第二支持多主键,测试过,效率一般

CREATE PROC P_viewPage

/*

no_mIss 分页存储过程 2007.2.20 QQ:34813284

适用于单一主键或存在唯一值列的表或视图

*/

@TableName VARCHAR(200), --表名

@FieldList VARCHAR(2000), --显示列名

@PrimaryKey VARCHAR(100), --单一主键或唯一值键

@Where VARCHAR(1000), --查询条件 不含'where'字符

@Order VARCHAR(1000), --排序 不含'order by'字符,如id asc,userid desc,当@SortType=3时生效

@SortType INT, --排序规则 1:正序asc 2:倒序desc 3:多列排序

@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, --返回记录总数

@TotalPageCount INT OUTPUT --返回总页数

AS

SET NOCOUNT ON

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

RETURN

END

DECLARE @new_where1 VARCHAR(1000)

DECLARE @new_where2 VARCHAR(1000)

DECLARE @new_order 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 SET @new_order = ' ORDER BY ' + @PrimaryKey + ' ASC'

IF @SortType = 2 SET @new_order = ' ORDER BY ' + @PrimaryKey + ' DESC'

END

ELSE

BEGIN

SET @new_order = ' ORDER BY ' + @Order

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

BEGIN

SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '

+ @TableName + @new_where1 + @new_order

END

ELSE

BEGIN

IF @SortType = 1

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_order +' ) AS TMP) '+ @new_order

END

IF @SortType = 2

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_order + ') AS TMP) '+ @new_order

END

IF @SortType = 3

BEGIN

IF CHARINDEX(',',@Order) = 0 BEGIN RETURN END

SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '

+ @TableName + @new_where2 + @PrimaryKey + ' NOT IN (SELECT TOP '

+ STR(@PageSize*(@PageIndex-1)) + ' ' + @PrimaryKey

+ ' FROM ' + @TableName + @new_where1 + @new_order + ')'

+ @new_order

END

END

EXEC(@Sql)

GO

CREATE PROC P_public_ViewPage_per

/*

no_mIss 通用分页存储过程 2007.3.1 QQ:34813284

适用于联合主键/单主键/存在能确定唯一行列/存在能确定唯一行的多列 (用英文,隔开)

调用:

第一页查询时返回总记录和总页数及第一页记录:

EXECUTE P_public_ViewPage_per 'TableName','col1,col2,col3,col4','pk1,pk2,pk3',

'col5>0 and col7<9','pk1 asc,pk2 asc,pk3 asc',0,10,1,

@TotalCount OUTPUT,@TotalPageCount OUTPUT

其它页调用,比如第89页(假设第一页查询时返回总记录为2000000):

EXECUTE P_public_ViewPage_per 'TableName','col1,col2,col3,col4','pk1,pk2,pk3',

'col5>0 and col7<9','pk1 asc,pk2 asc,pk3 asc',2000000,10,89,

@TotalCount OUTPUT,@TotalPageCount OUTPUT

*/

@TableName VARCHAR(200), --表名

@FieldList VARCHAR(2000), --显示列名

@PrimaryKey VARCHAR(100), --单一主键或唯一值键或联合主键列表(用英文,隔开)或能确定唯一行的多列列表(用英文,隔开)

@Where VARCHAR(1000), --查询条件 不含'where'字符

@Order VARCHAR(1000), --排序 不含'order by'字符,用英文,隔开

@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, --返回记录总数

@TotalPageCount INT OUTPUT --返回总页数

AS

SET NOCOUNT ON

SET @FieldList = REPLACE(@FieldList,' ','')

IF @FieldList = '*'

BEGIN SET @FieldList = 'A.*'END

ELSE

BEGIN

SET @FieldList = 'A.' + REPLACE(@FieldList,',',',A.')

END

WHILE CHARINDEX(', ',@Order)>0

BEGIN

SET @Order = REPLACE(@Order,', ',',')

END

IF ISNULL(@TableName,'') = '' OR ISNULL(@PrimaryKey,'') = ''

OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0

BEGIN

RETURN

END

DECLARE @new_where1 VARCHAR(1000)

DECLARE @new_where2 VARCHAR(1000)

DECLARE @new_where3 VARCHAR(1000)

DECLARE @new_where4 VARCHAR(1000)

DECLARE @new_order1 VARCHAR(1000)

DECLARE @new_order2 VARCHAR(1000)

DECLARE @Fields VARCHAR(1000)

DECLARE @Sql VARCHAR(8000)

DECLARE @SqlCount NVARCHAR(4000)

SET @Fields = @PrimaryKey + ','

SET @new_where2 = ''

SET @new_where4 = ''

IF ISNULL(@where,'') = ''

BEGIN

SET @new_where1 = ' '

SET @new_where3 = ' WHERE '

END

ELSE

BEGIN

SET @new_where1 = ' WHERE ' + @where + ' '

SET @new_where3 = ' WHERE 1=1 '

+ REPLACE(' AND ' + @where,' AND ',' AND A.')+ ' AND '

END

WHILE CHARINDEX(',',@Fields)>0

BEGIN

SET @new_where2 = @new_where2

+ 'A.' + LTRIM(LEFT(@Fields,CHARINDEX(',',@Fields)-1))

+ ' = B.' + LTRIM(LEFT(@Fields,CHARINDEX(',',@Fields)-1)) + ' AND '

SET @new_where4 = @new_where4

+ 'B.' + LTRIM(LEFT(@Fields,CHARINDEX(',',@Fields)-1)) + ' IS NULL AND '

SET @Fields = SUBSTRING(@Fields,CHARINDEX(',',@Fields)+1,LEN(@Fields))

END

SET @new_where2 = LEFT(@new_where2,LEN(@new_where2)-4)

SET @new_where4 = LEFT(@new_where4,LEN(@new_where4)-4)

IF ISNULL(@order,'') = ''

BEGIN

SET @new_order1 = ''

SET @new_order2 = ''

END

ELSE

BEGIN

SET @new_order1 = ' ORDER BY ' + @Order

SET @new_order2 = ' ORDER BY '

+ RIGHT(REPLACE(',' + @Order,',',', A.' ),

LEN(REPLACE(',' + @Order,',',', A.' ))-1)

END

SET @SqlCount = 'SELECT @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/'

+ CAST(@PageSize AS VARCHAR)+') FROM ' + @TableName

+ ' A ' + @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

BEGIN

SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '

+ @TableName + ' A'+ @new_where1 + @new_order1

END

ELSE

BEGIN

SET @Sql = 'SELECT TOP ' + STR(@PageSize) + ' ' + @FieldList + ' FROM '

+ @TableName + ' A LEFT JOIN (SELECT TOP '

+ STR(@PageSize*(@PageIndex-1))

+ ' ' + @PrimaryKey + ' FROM ' + @TableName + @new_where1

+ @new_order1 + ' )B ON ' + @new_where2 + @new_where3

+ @new_where4 + @new_order2

END

EXEC(@Sql)

GO

 
 
 
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