传入任意SQL语句 这是不可能实现的
兼容你的 排序子句 是可以的,通常的分页存储过程 不是有让你传入 排序的字符串吗? 在那传入如果你的需求比较特殊, 那不如贴上来看下
兼容你的 排序子句 是可以的,通常的分页存储过程 不是有让你传入 排序的字符串吗? 在那传入如果你的需求比较特殊, 那不如贴上来看下
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(
@p1 varchar(8000), --SQL查询语句
@p2 bigint, --页的大小
@p3 bigint, --第几面,从0开始
@recordTotal INT OUTPUT --输出记录总数
)
as
begin
set nocount on
declare @tsql varchar(8000)
DECLARE @tempCount NVARCHAR(1000)
--declare @tp1 varchar(8000)
set @p1 = REPLACE(@p1,'@','''')
--输出参数为总记录数
SET @tempCount = 'SELECT @recordTotal = COUNT(*) FROM ('+@p1+ ') AS my_temp'
EXECUTE sp_executesql @tempCount,N'@recordTotal INT OUTPUT',@recordTotal OUTPUT select @tsql='with t as '
+'(select row_number() over(order by getdate()) ''rn'' ,*'
+' from ('+@p1+') y) '
+'select top '+rtrim(@p2)+ ' * '
+'from t '
+'where rn>'+rtrim(@p2*@p3)
exec(@tsql)
end
(
@Tables varchar(1000),
@PK varchar(100),
@Sort varchar(200) = NULL,
@isAscending bit=1,
@PageNumber int = 1,
@PageSize int = 10,
@Fields varchar(8000) = '*',
@Filter varchar(max) = NULL,
@Group varchar(1000) = NULL
)
ASDECLARE @strFilter varchar(max)
DECLARE @strSimpleFilter varchar(max)
DECLARE @strGroup varchar(max)DECLARE @SortTable varchar(100)
DECLARE @SortName varchar(100)
DECLARE @strPKColumn varchar(100)DECLARE @strSortColumn varchar(200)
DECLARE @operator char(2)/*Set filter & group variables.*/
IF @Filter IS NOT NULL AND @Filter != ''
BEGIN
SET @strFilter = ' WHERE ' + @Filter + ' '
SET @strSimpleFilter = ' AND ' + @Filter + ' '
END
ELSE
BEGIN
SET @strSimpleFilter = ' '
SET @strFilter = ' '
END
IF @Group IS NOT NULL AND @Group != ''
SET @strGroup = ' GROUP BY ' + @Group + ' '
ELSE
begin
SET @strGroup = ' '
end/*count*/
--exec ('select count(*) from ' +@Tables+' '+ @strFilter)
/*operator and asc_desc*/
declare @strAsc_Des varchar(50)
IF @isAscending = 0
BEGIN
SET @operator = '<='
SET @strAsc_Des = ' Desc '
END
ELSE
BEGIN
SET @operator = '>='
SET @strAsc_Des = ' ASC '
END/*Set sorting variables.*/
/*Default Sorting*/
IF @Sort IS NULL OR @Sort= ''
BEGIN
SET @Sort = @PK
ENDSET @strSortColumn = @SortIF CHARINDEX('.', @PK) > 0
BEGIN
SET @strPKColumn = SUBSTRING(@PK, CHARINDEX('.',@PK) + 1, LEN(@PK))
END
ELSE
BEGIN
SET @strPKColumn = @PK
END
IF CHARINDEX('.', @strSortColumn) > 0
BEGIN
SET @SortTable = SUBSTRING(@strSortColumn, 0, CHARINDEX('.',@strSortColumn))
SET @SortName = SUBSTRING(@strSortColumn, CHARINDEX('.',@strSortColumn) + 1, LEN(@strSortColumn))
END
ELSE
BEGIN
SET @SortTable = @Tables
SET @SortName = @strSortColumn
END/*Handle complex table*/
--Be join table,so get the left table
IF CHARINDEX(' join ',@Tables) > 0
BEGIN
SET @SortTable=SUBSTRING(ltrim(@Tables),0,CHARINDEX(' ',@Tables))
SET @strSortColumn = @SortTable+'.'+@SortName
END
/*Check the sortColumn if be Unique*/IF @SortName <> @strPKColumn
BEGIN
DECLARE @tempName varchar(100)SELECT @tempName=b.name
FROM sysobjects a INNER JOIN
sysobjects b ON a.id = b.parent_obj
INNER JOIN sysindexes c ON b.name = c.name INNER JOIN
sysindexkeys d ON c.id = d.id AND c.indid = d.indid INNER JOIN
syscolumns e ON d.id = e.id AND d.colid = e.colid
WHERE (b.xtype = 'UQ') AND (a.name = @SortTable) AND (e.name = @SortName)IF @tempName IS NULL
BEGIN
GOTO Paging_Not_In END
ENDPaging_RowCount:/*Find the @SORT type*/DECLARE @type varchar(100)
DECLARE @prec intSELECT @type=t.name, @prec=c.prec
FROM sysobjects o
JOIN syscolumns c on o.id=c.id
JOIN systypes t on c.xusertype=t.xusertype
WHERE o.name = @SortTable AND c.name = @SortNameIF CHARINDEX('char', @type) > 0
SET @type = @type + '(' + CAST(@prec AS varchar) + ')'DECLARE @strPageSize varchar(50)
DECLARE @strStartRow varchar(50)
/*Default Page Number*/
--IF @PageNumber < 1
--SET @PageNumber = 1/*Set paging variables.*/
SET @strPageSize = CAST(@PageSize AS varchar(50))
SET @strStartRow = CAST(((@PageNumber - 1)*@PageSize + 1) AS varchar(50))
/*Execute dynamic query '
SET ROWCOUNT ' + @strPageSize +*/
DECLARE @ddsql NVARCHAR(max)--,@SortColumn VARCHAR(100),@RETURNFILED NVARCHAR(4000)
--SET @RETURNFILED=N'@SortColumn ' + @type+ ' output'
--
--SET @ddsql='
--SET ROWCOUNT 100 SELECT @SortColumn='+@strSortColumn+' FROM (
--SELECT ID=row_number()over(order by '+@Sort+ @strAsc_Des+'),' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup +
--') AS A WHERE A.ID='+@strStartRow
--EXEC sp_executesql @ddsql,@RETURNFILED,@SortColumn OUTPUT--输出变量
--PRINT @SortColumn
SET @ddsql='DECLARE @SortColumn ' + @type + 'SELECT @SortColumn='+@strSortColumn+' FROM (
SELECT ID=row_number()over(order by '+@Sort+ @strAsc_Des+'),' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup +
') AS A WHERE A.ID='+@strStartRow+'
SET ROWCOUNT ' + @strPageSize +
'SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' +
@strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + @strAsc_Des
PRINT @ddsql
exec (@ddsql)
--EXEC('DECLARE @SortColumn ' + @type + '
--SET ROWCOUNT ' + @strStartRow +
-- ' SELECT @SortColumn=' + @strSortColumn + ' FROM ' + @Tables + @strFilter + ' ' + @strGroup +
-- ' ORDER BY ' + @Sort + @strAsc_Des+' SET ROWCOUNT ' + @strPageSize +
-- 'SELECT ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strSortColumn + @operator + ' @SortColumn ' +
-- @strSimpleFilter + ' ' + @strGroup + ' ORDER BY ' + @Sort + @strAsc_Des ) /* 支持CLR函数
EXEC('
SET ROWCOUNT 0 ' + ' ' +
'if object_id('+''''+'tempyww'+''''+') is not null begin drop table tempyww end SELECT ' + @Fields + ' into tempyww FROM ' + @Tables + ' '+@strFilter+' select top '+@strPageSize+' * from tempyww WHERE ' + @strSortColumn + @operator +'''' + @SortColumn+''
'' + ' ' + @strGroup + ' ORDER BY ' + @Sort + @strAsc_Des )
*/
RETURNPaging_Not_In:DECLARE @strTotalNum int
SET @strTotalNum = (@PageNumber - 1)*@PageSize--如果排序是索引列则notin方法会非常缓慢
--下限以10000为界
--if (@strTotalNum > 10000)
--begin
--declare @TotalCount int
--declare @SQL nvarchar(100)--set @SQL = 'select @TotalCount = count(*) from ' +@Tables+' '+ @strFilter
--exec sp_executesql @SQL,N'@TotalCount int output',@TotalCount out
--上限以3/4为界
--if (@strTotalNum/@TotalCount < 0.75) goto Paging_ASCD_ESC
--end--第一页
IF @strTotalNum = 0
beginexec('select top '+@PageSize+' '+@Fields+' from '+@Tables+' '+@strFilter+ @strGroup + ' ORDER BY ' + @Sort + @strAsc_Des+ ','+ @PK + @strAsc_Des)
PRINT '1'
end
ELSE
beginexec('select top '+@PageSize+' '+@Fields+' from '+@Tables+' where '
+@PK+' not in(select top '
+@strTotalNum+' '+@PK+' from '+@Tables+' '+@strFilter+ @strGroup +
' ORDER BY ' + @Sort + @strAsc_Des + ','+ @PK + @strAsc_Des
+') '+@strSimpleFilter+ @strGroup + ' ORDER BY ' + @Sort + @strAsc_Des + ','+ @PK + @strAsc_Des)
PRINT '2'
end
RETURN
Paging_ASCD_ESC:
ALTER PROCEDURE [SelectPages]
(
@p1 varchar(8000), --SQL查询语句
@p2 bigint, --页的大小
@p3 bigint, --第几面,从0开始
@p4 varchar(8000), --排序子句(最终列名,且不函表别名)
@recordTotal INT OUTPUT --输出记录总数
)
as
begin
set nocount on
declare @tsql varchar(8000)
DECLARE @tempCount NVARCHAR(1000)
--declare @tp1 varchar(8000)
set @p1 = REPLACE(@p1,'@','''')
--输出参数为总记录数
SET @tempCount = 'SELECT @recordTotal = COUNT(*) FROM ('+@p1+ ') AS my_temp'
EXECUTE sp_executesql @tempCount,N'@recordTotal INT OUTPUT',@recordTotal OUTPUT
IF @p4=''
SET @p4='getdate()'
select @tsql='with t as '
+'(select row_number() over(order by '+@p4+') ''rn'' ,*'
+' from ('+@p1+') y) '
+'select top '+rtrim(@p2)+ ' * '
+'from t '
+'where rn>'+rtrim(@p2*@p3)
PRINT @tsql
exec(@tsql)
END
问下 这个分页是干嘛的 百度了下说分页就是用row_number()或者in,not int 实现就OK 了.你这个分页指的是在前台应用程序里面实现翻页吗?(就是每页里面显示多少行。)