sql分页存储过程简析
1.支持多列排序，自认为效率比较高的一个存储过程：
/****** 对象: StoredProcedure [dbo].[P_viewPage] 脚本日期: 05/14/2012 08:49:34 ******/
http://www.atcpu.com SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create PROC [dbo].[P_viewPage]
-- Add the parameters for the stored procedure here
@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(8000), --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
http://www.atcpu.com -- SET NOCOUNT ON added to prevent extra result sets from
--
interfering with SELECT statements.
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_00参数错误')
RETURN
END
IF @SortType = 3
BEGIN
IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC')
BEGIN
PRINT('ERR_02排序错误') RETURN END
END
DECLARE @new_where1 VARCHAR(8000)
DECLARE @new_where2 VARCHAR(8000)
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
http://www.atcpu.com 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 <> '*'
http://www.atcpu.com 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
http://www.atcpu.com 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
http://www.atcpu.com 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
http://www.atcpu.com END
END
EXEC(@Sql)
--输出内容
SELECT @TotalCount as N'@TotalCount',
@TotalPageCount as N'@TotalPageCount'
2.一个比较创新的存储过程：(注：此存储过程利用了sql2005函数，适用于sql20005极其以上版本)
/****** 对象: StoredProcedure [dbo].[QueryPagination] 脚本日期: 05/14/2012 08:57:04 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*-------------------------------------------------
* strFieldList 字段列表
* strTableList 查询表列表
* strWhereClause 查询条件
* strOrderFld 排序字段
* intTotoRecords (输入/输出)总记录数
* intTotoPages (输入/输出)总页数
* intPageSize 每页记录数
* intCurrentPage 当前页
* intCountToto 是否统计总数
* 0: 不容积总数
* 1: 统计总数
-------------------------------------------------*/
CREATE PROCEDURE [dbo].[QueryPagination]
@t char(1)='',
@strFieldList varchar(1000)='',
@strTableList varchar(300)='',
@strWhereClause varchar(1000)='',
@strOrderFld varchar(100)='',
@intCurrentPage int=1,
http://www.atcpu.com @intPageSize int=10,
@intCountToto int=0,
@intTotoRecords int=0 out,
@intTotoPages int=0 out
AS
BEGIN
DECLARE @strSQL nvarchar(4000)
DECLARE @intCurPage int
DECLARE @strWhere varchar(200)
DECLARE @setvalue_error int
set @strWhere = ''; -- Where 语句
If @strWhereClause <> ''
set @strWhere = @strWhereClause;
Set xact_abort on
Begin Tran
SET @strSQL = 'SELECT COUNT(1) FROM ' + @strTableList + ' ' + @strWhere;
exec('DECLARE cur_t CURSOR FOR '+ @strSQL)
OPEN cur_t
FETCH NEXT FROM cur_t into @intTotoRecords
while @@fetch_status = 0
begin
fetch next from cur_t into @intTotoRecords
end
http://www.atcpu.com close cur_t
deallocate cur_t
Set @setvalue_error = @@error
If @setvalue_error<>0
Begin
Set @intTotoRecords = -1;
GOTO DoNext;
Rollback Tran
End
Else
Begin
Commit Tran
GOTO DoNext;
End
DoNext:
IF @intTotoRecords<0
GOTO errTotoRecords; -- 返回错误：记录总数错误
IF @intPageSize<=0
GOTO errPageSize; -- 返回错误：每页记录数范围错误
-- 计算出总页数
IF @intTotoRecords%@intPageSize <> 0
set @intTotoPages = cast(@intTotoRecords/@intPageSize as int) + 1;
ELSE
http://www.atcpu.com set @intTotoPages=cast(@intTotoRecords/@intPageSize as int) ;
-- 确定待查询的页码数
-- 如果页码数小于等于 0 ，则查询返回第一页
-- 如果页码数大于最大页码数，则查询返回最后一页
IF @intCurrentPage<=0
set @intCurPage=1;
ELSE IF @intCurrentPage>@intTotoPages
set @intCurPage = @intTotoPages;
ELSE
set @intCurPage=@intCurrentPage;
If @strWhere <> ''
Set @strSQL = 'SELECT * FROM (SELECT ROW_NUMBER() OVER (ORDER BY ' + @strOrderFld + ') ROWNUM,' + @strFieldList + ' FROM ' + @strTableList + ' ' + @strWhere +
') TAB_TMP WHERE ROWNUM>' + cast((@intCurPage-1)*@intPageSize as varchar) + ' and ROWNUM < ' + cast(@intCurPage*@intPageSize+1 as varchar);
Else
Set @strSQL = 'SELECT * FROM (SELECT ROW_NUMBER() OVER (ORDER BY ' + @strOrderFld + ') ROWNUM,' + @strFieldList + ' FROM ' + @strTableList +
') TAB_TMP WHERE ROWNUM>' + cast((@intCurPage-1)*@intPageSize as varchar) + ' and ROWNUM < ' + cast(@intCurPage*@intPageSize+1 as varchar) ;
Execute(@strSQL);
http://www.atcpu.com If @@error<>0
return @@error;
Else
return 0;
errPageSize:
return -1;
errTotoRecords:
return -2;
END
