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sp_SplitPage(
@Tables varchar( 1000 ) = ' ', --表名称或级联名称
@PrimaryKey varchar(100)= ' ', --主键名称
@Sort varchar(200)= ' ', --排序列,含ASC/DESC
@CurrentPage int = 1, --当前页码
@PageSize int = 10, --每页显示记录数
@Fields varchar(1000) =' ', --读取的字段列表
@Filter varchar(1000)= ' ', --查询条件
@Group varchar(1000) =' ' --聚合查询信息
)
AS
/*存储查询字符串*/
DECLARE @strSQL nvarchar( 2048 )
set @strSQL = ' '
/*存储查询条件*/
DECLARE @strFilters nvarchar( 1000 )
set @strFilters = ' '
/*存储排序字段*/
DECLARE @strSort nvarchar( 300 )
set @strSort = ' '
/*存储聚合查询*/
DECLARE @strGroup nvarchar( 1100 )
set @strGroup = ' '
if( @Filter IS NOT NULL AND @Filter != '' )
BEGIN
if( @CurrentPage = 1 )
set @strFilters = ' WHERE ( ' + @Filter + ' ) '
ELSE
set @strFilters = ' ( ' + @Filter + ' ) '
END
if( @Sort IS NOT NULL AND @Sort != '' )
BEGIN
set @strSort = ' ORDER BY ' + @Sort
END
if( @Group IS not null AND @Group != '' )
BEGIN
set @strGroup = ' Group By ' + @Group
END
ELSE
BEGIN
set @strGroup = ' '
END
/*纠正查询字段信息*/
if( @Fields IS NULL OR @Fields = '' )
set @Fields = ' * '
/*存储每页提取的记录数*/
DECLARE @strTop nvarchar( 10 )
set @strTOP = Convert( nvarchar(10),@PageSize )
print @strTOP
print @strGroup
/*如果是第一页,则直接提取*/
if( @CurrentPage = 1 )
BEGIN
set @strSQL = 'SELECT Top ' +@strTop + ' ' + @Fields + ' FROM ' + @Tables + @strFilters + @strSort + @strGroup
END
ELSE
BEGIN
set @strSQL = 'SELECT Top ' + convert( nvarchar(10),@PageSize ) + ' ' + @Fields + ' FROM ' + @Tables + ' WHERE ' + @strFilters + ' AND (' + @PrimaryKey + ' NOT IN ( SELECT TOP ' + Convert( nvarchar(10),( ( @CurrentPage - 1 ) * @PageSize ) ) + ' ' + @PrimaryKey + ' FROM ' + @Tables + ' WHERE ' + @strFilters + @strSort + ' ) ) ' + @strSort
END
print @strSQL
/*执行查询*/
exec sp_executesql @strSQL
/***************************************************************
分页存储过程
Create BY Tellov 2008-05-28
tellov@gmail.com
注意:使用本存储过程,SQL语句中必须要带有Order BY 子句
支持多表链接查询,支持别名,支持嵌套SELECT语句
注:语句中如果带有group by ,则页总数和记录数无法正确统计
-- Modify BY Tellov 2008-12-10 修正了多字段排序且序不同时分页会出现返回数据集不正确的问题
***************************************************************
参数说明:
1.@sql 查询语句
2.@CurrentPage 当前页
3.@PageSize 页大小
4.@Counts 查询到的记录总数
5.@pageCount 页总数
***************************************************************/
ALTER PROCEDURE [dbo].[Sp1_Exec_Page]
(
@Sql nvarchar(4000), -- 要执行的SQL语句
@CurrentPage int = 1, -- 当前页
@PageSize int = 30, -- 每页纪录数
@counts int output, -- 纪录总数
@pageCount int output -- 页总数
)
--WITH ENCRYPTION
AS
Set Lock_TimeOut 2000
declare @sort nvarchar(500)
declare @variableName nvarchar(300)
declare @setVariableName nvarchar(2000)
declare @where nvarchar(4000)
declare @temp nvarchar(max)
declare @tempwhere nvarchar(2000)
select @sql = replace(@sql,' ',' ')
select @where = ''
select @setVariableName = ''
select @variableName = ''
-- 取出orderBy
if CHARINDEX(' order by ',@sql) = 0
begin
select '使用此存储过程时查询语句中必须带上order by 子句';
end
else
begin
declare @wherelocation int,@orderbylocation int,@groupbylocation int
-- 取最后一个order by 的位置
select @orderbylocation = CHARINDEX(' order by ',@sql)
while CHARINDEX(' order by ',@sql,@orderbylocation+10) <> 0
begin
select @orderbylocation = CHARINDEX(' order by ',@sql,@orderbylocation+10)
end
-- 默认当前页
IF @CurrentPage < 1
SET @CurrentPage = 1
-- 获取总行数
select @temp = left(@Sql,@orderbylocation)
select @temp = 'Select @counts = count(1) from ( ' + @temp + ') as __tt'
--print @temp
exec sp_executesql @temp,N'@counts int output',@counts output
-- 获取总分页数
If @counts < @pageSize
Select @pageCount = 1
else
Select @pageCount = ((@Counts-1) / @pageSize) +1
-- 提高效率,如果是第一页直接返回
if @CurrentPage = 1
begin
declare @returntemp nvarchar(4000)
select @returntemp = 'select top ' + convert(nvarchar(20),@pageSize) + substring(@sql,CHARINDEX('select ',@sql) + 6,len(@sql))
exec(@returntemp)
--print @returntemp
end
else
begin
-- 取最后一个WHERE的位置
select @wherelocation = CHARINDEX(' where ',@sql)
while @wherelocation <> 0 and CHARINDEX(' on ',@sql,@wherelocation + 7) <> 0
begin
select @wherelocation = CHARINDEX(' where ',@sql,@wherelocation + 7)
end
-- 取最后一个group by 的位置
select @groupbylocation = CHARINDEX(' group by ',@sql)
while CHARINDEX(' group by ',@sql,@groupbylocation+10) <> 0
begin
select @groupbylocation = CHARINDEX(' group by ',@sql,@groupbylocation+10)
end
select @sort = substring(@sql,@orderbylocation+10,len(@sql))
-- 生成执行SQL时必须的语句
select @sort = @sort + ','
select @tempwhere = ''
while CHARINDEX(',',@sort) > 0
begin
select @temp = substring(@sort,0,CHARINDEX(',',@sort))
select @temp = replace(@temp,' desc','')
select @temp = replace(@temp,' asc','')
select @setVariableName = @setVariableName + '@' + ltrim(replace(@temp,'.','')) + '=Convert(nvarchar(300),' + @temp + ',21),'
select @variableName = @variableName + '@' + ltrim(replace(@temp,'.','')) + ' nvarchar(300),'
--print @variableName
if @tempwhere <> ''
begin
select @where = @where + ' or (' + right(@tempwhere,len(@tempwhere)-4)
end
select @where = @where + ' and ' + @temp
if CHARINDEX(' desc',@sort) <> 0
begin
select @where = @where + ' <= @' + ltrim(replace(@temp,'.',''))
end
else
begin
select @where = @where + ' >= @' + ltrim(replace(@temp,'.',''))
end
if @tempwhere <> ''
begin
select @where = @where + ')'
end
select @tempwhere = @tempwhere + ' and ' + @temp + ' = @' + ltrim(replace(@temp,'.',''))
select @sort = substring(@sort,CHARINDEX(',',@sort)+1,len(@sort))
end
select @variableName = left(@variableName,len(@variableName)-1)
select @setVariableName = left(@setVariableName,len(@setVariableName)-1)
select @where = '(' + substring(@where,6,len(@where))+ ')'
--print @where
--print @setVariableName
--print @variableName
-- 设置RowCount
declare @strStartRow int
Select @strStartRow = ((@CurrentPage - 1)*@PageSize + 1)
Set RowCount @strStartRow
--print @sql
-- 最终执行Sql
select @temp = 'DECLARE ' + @variableName + '
SET ROWCOUNT ' + Convert(nvarchar(20),@strStartRow) + '
Select ' + @setVariableName + substring(@Sql,charindex(' from ',@Sql),8000) + '
SET ROWCOUNT ' + Convert(nvarchar(20),@PageSize) + '
'
--print @temp
--print @sql
--print @wherelocation
if @wherelocation <> 0
select @temp = @temp + STUFF(@sql,@wherelocation+7,0,@where + ' and ')
else
begin
if @groupbylocation <> 0
select @temp = @temp + STUFF(@sql,@groupbylocation + 1,0,' where ' + @where + ' ')
else if @orderbylocation <> 0
select @temp = @temp + STUFF(@sql,@orderbylocation + 1,0,' where ' + @where + ' ')
end
exec(@temp)
--print @temp
end
end
-- 字符串缓存实现的通用分页存储过程(转自邹建)
ALTER PROC sp_PageView
@tbname sysname, --要分页显示的表名
@FieldKey sysname, --用于定位记录的主键(惟一键)字段,只能是单个字段
@PageCurrent int=1, --要显示的页码
@PageSize int=10, --每页的大小(记录数)
@FieldShow nvarchar(1000)='', --以逗号分隔的要显示的字段列表,如果不指定,则显示所有字段
@FieldOrder nvarchar(1000)='', --以逗号分隔的排序字段列表,可以指定在字段后面指定DESC/ASC用于指定排序顺序
@Where nvarchar(1000)='', --查询条件
@PageCount int OUTPUT --总页数
AS
DECLARE @sql nvarchar(4000)
SET NOCOUNT ON
--检查对象是否有效
IF OBJECT_ID(@tbname) IS NULL
BEGIN
RAISERROR(N'对象"%s"不存在',1,16,@tbname)
RETURN
END
IF OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTable')=0
AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsView')=0
AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTableFunction')=0
BEGIN
RAISERROR(N'"%s"不是表、视图或者表值函数',1,16,@tbname)
RETURN
END
--分页字段检查
IF ISNULL(@FieldKey,N'')=''
BEGIN
RAISERROR(N'分页处理需要主键(或者惟一键)',1,16)
RETURN
END
--其他参数检查及规范
IF ISNULL(@PageCurrent,0)<1 SET @PageCurrent=1
IF ISNULL(@PageSize,0)<1 SET @PageSize=10
IF ISNULL(@FieldShow,N'')=N'' SET @FieldShow=N'*'
IF ISNULL(@FieldOrder,N'')=N''
SET @FieldOrder=N''
ELSE
SET @FieldOrder=N'ORDER BY '+LTRIM(@FieldOrder)
IF ISNULL(@Where,N'')=N''
SET @Where=N''
ELSE
SET @Where=N'WHERE ('+@Where+N')'
--如果@PageCount为NULL值,则计算总页数(这样设计可以只在第一次计算总页数,以后调用时,把总页数传回给存储过程,避免再次计算总页数,对于不想计算总页数的处理而言,可以给@PageCount赋值)
IF @PageCount IS NULL
BEGIN
SET @sql=N'SELECT @PageCount=COUNT(*)'
+N' FROM '+@tbname
+N' '+@Where
EXEC sp_executesql @sql,N'@PageCount int OUTPUT',@PageCount OUTPUT
SET @PageCount=(@PageCount+@PageSize-1)/@PageSize
END
--计算分页显示的TOPN值
DECLARE @TopN varchar(20),@TopN1 varchar(20)
SELECT @TopN=@PageSize,
@TopN1=@PageCurrent*@PageSize
--第一页直接显示
IF @PageCurrent=1
EXEC(N'SELECT TOP '+@TopN
+N' '+@FieldShow
+N' FROM '+@tbname
+N' '+@Where
+N' '+@FieldOrder)
ELSE
BEGIN
SELECT @PageCurrent=@TopN1,
@sql=N'SELECT @n=@n-1,@s=CASE WHEN @n<'+@TopN
+N' THEN @s+N'',''+QUOTENAME(RTRIM(CAST('+@FieldKey
+N' as varchar(8000))),N'''''''') ELSE N'''' END FROM '+@tbname
+N' '+@Where
+N' '+@FieldOrder
SET ROWCOUNT @PageCurrent
EXEC sp_executesql @sql,
N'@n int,@s nvarchar(4000) OUTPUT',
@PageCurrent,@sql OUTPUT
SET ROWCOUNT 0
IF @sql=N''
EXEC(N'SELECT TOP 0'
+N' '+@FieldShow
+N' FROM '+@tbname)
ELSE
BEGIN
SET @sql=STUFF(@sql,1,1,N'')
--执行查询
EXEC(N'SELECT TOP '+@TopN
+N' '+@FieldShow
+N' FROM '+@tbname
+N' WHERE '+@FieldKey
+N' IN('+@sql
+N') '+@FieldOrder)
END
END