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sql翻页查询中加去重复数据查询如何做

热度:8   发布时间:2016-04-27 11:27:58.0
sql翻页查询中加去重复数据查询怎么做啊
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!~~

------解决方案--------------------
SQL code
--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 ONGOSET QUOTED_IDENTIFIER ONGO-- ===================================================--        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)asbeginset nocount ondeclare @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 = 10if (isnull(@pagecurrent,0) < 1)    set @pagecurrent = 1if (@strwhere is null or @strwhere = '')    set @strwhere = ' 'else    set @strwhere = N' where ' + @strwhereif (@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,[email protected] int output',@counts output        set @pagecount = (@counts + @pagesize - 1)[email protected]    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)[email protected] + 1)                    +N' and ' + ltrim(@[email protected])    endexec(@strsql)set nocount offend--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 ONGOSET QUOTED_IDENTIFIER ONGOALTER function [dbo].[f_strcol](@str nvarchar(4000))returns nvarchar(4000)asbegindeclare @strsg nvarchar(4000)declare @strbg nvarchar(4000)declare @stras nvarchar(4000)declare @len intdeclare @dou intdeclare @dian intset @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,@[email protected])    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,@[email protected])    set @dou = charindex(',',@strsg)    set @dian = charindex('.',@strsg)    set @len = len(@strsg)endreturn stuff(@strbg,1,1,'')end
------解决方案--------------------
放假了吧!
------解决方案--------------------
sql = "select top " + secondly + " * from (select row_number() over (order by getdate())rn,* from " + table + ") where rn >= " + first;
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