小弟我的sql语句这样写的:
sql = "select top " + secondly + " * from " + table + " where " + id + " not in(select top " + first + " " + id + " from " + table + ")";
secondly :设定的翻页大小,
table :查询的表名,
id :主键
first 翻页大小*(数据总数-1)
这是控制翻页的,
但现在我要将翻页中去除重复的id数据,并是最新的数据显示。
我不知道怎么写了,还请各位达人帮帮忙!~~
sql = "select top " + secondly + " * from " + table + " where " + id + " not in(select top " + first + " " + id + " from " + table + ")";
secondly :设定的翻页大小,
table :查询的表名,
id :主键
first 翻页大小*(数据总数-1)
这是控制翻页的,
但现在我要将翻页中去除重复的id数据,并是最新的数据显示。
我不知道怎么写了,还请各位达人帮帮忙!~~
--这样子翻页来查询如果id唯一是主键,而且只有一个表,翻页是正确的,如果是多表或者id是可以重复的
--那么翻页后可能会丢失id重复的数据!
--下边的翻页应该可以满足下你的需求,不是很完善!-- 2005 翻页!
USE [model]
GO
/****** 对象: StoredProcedure [dbo].[getpate_2005] 脚本日期: 01/19/2011 19:17:48 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO-- ===================================================
-- auhtor : acherat
-- modified date : 01/10/2011 20:41:44
-- description : 分页存储
-- ===================================================ALTER proc [dbo].[getpate_2005]
(
@tbname nvarchar(4000), --表名及多表连接语句
@fieldcol nvarchar(4000), --查询的字段名
@pagesize int, --分页尺寸
@pagecurrent int, --需找寻的页码
@strwhere nvarchar(4000) = null, --表查询的限制条件
@strorder nvarchar(4000) = null, --表查询的排序
@pagecount int output --返回总页数
)
as
begin
set nocount on
declare @strsql nvarchar(4000) --返回结果集动态SQL语句
declare @strtmp nvarchar(4000) --计算总页数动态SQL语句
declare @colshow nvarchar(4000)
declare @counts int--参数初始化
if (@fieldcol is null or @fieldcol = '')
set @fieldcol = '*'
if (isnull(@pagesize,0) < 1)
set @pagesize = 10
if (isnull(@pagecurrent,0) < 1)
set @pagecurrent = 1
if (@strwhere is null or @strwhere = '')
set @strwhere = ' '
else
set @strwhere = N' where ' + @strwhere
if (@strorder is null or @strorder = '')
set @strorder = ' '
else
set @strorder = N' order by ' + @strorder--总页数设置
if @pagecount is null
begin
set @strtmp = N' select @counts = count(*) from ' + @tbname + @strwhere + @strorder
exec sp_executesql @strtmp,N'@counts int output',@counts output
set @pagecount = (@counts + @pagesize - 1)/@pagesize
end--查询结果设置
if (@pagecount >= 1)
begin
set @colshow = (select dbo.f_strcol(@fieldcol))
set @strsql = N'select ' + @colshow + N' from (select row_number() over (order by getdate())iii,' + @fieldcol
+N' from ' + @tbname + @strwhere + @strorder +N')temp where iii between ' + ltrim((@pagecurrent - 1)*@pagesize + 1)
+N' and ' + ltrim(@pagecurrent*@pagesize)
end
exec(@strsql)
set nocount off
end
--辅助函数!
USE [model]
GO
/****** 对象: UserDefinedFunction [dbo].[f_strcol] 脚本日期: 01/19/2011 19:18:02 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER function [dbo].[f_strcol](@str nvarchar(4000))
returns nvarchar(4000)
as
begin
declare @strsg nvarchar(4000)
declare @strbg nvarchar(4000)
declare @stras nvarchar(4000)
declare @len int
declare @dou int
declare @dian int
set @strsg = @str + ','
set @strbg = ''
set @len = len(@strsg)
set @dou = charindex(',',@strsg)
set @dian = charindex('.',@strsg)
while (@dou > 0)
begin
set @stras = substring(@strsg,@dian+1,@dou-@dian-1)
if charindex('as',@stras) > 0
set @stras = ltrim(rtrim(right(@stras,len(@stras)-charindex('as',@stras)-1)))
set @strbg = @strbg + ',' + @stras
set @strsg = substring(@strsg,@dou+1,@len-@dou)
set @dou = charindex(',',@strsg)
set @dian = charindex('.',@strsg)
set @len = len(@strsg)
end
return stuff(@strbg,1,1,'')
end
谢谢大家@!!~~~~(>_<)~~~~
你的用户名:chenyx被我看成(chenxy)了
程序员是cheng呀
如果id不唯一。就重新排序生成一个唯一id用了分页。