使用SQL对数据进行整理
网上下的全国 省市区 数据比较乱(http://qq704855854.blog.163.com/blog/static/19111835520142319275411/)。导入后,进行整理。
新建两个函数:
---去除括号 CREATE function [dbo].[tidy](@Name varchar(500)) returns varchar(500) as begin declare @startIndex as int ; declare @endIndex as int ; declare @len as int ; declare @reverse as varchar(500) ; declare @luanma as varchar(200); set @startIndex = CHARINDEX(‘(‘,@Name) ; if( @startIndex =0) return @Name ; set @len = LEN(@name) ; set @reverse = Reverse( @Name ); set @endIndex = CHARINDEX(‘)‘, @reverse ) ; if( @endIndex <2 ) return left(@Name, @startIndex -1 ) ; if( CHARINDEX(‘(‘,@reverse) < @endIndex) return left(@Name,@startIndex-1 ) ; set @luanma = right(@Name , @endIndex - 1 ) ; if( @luanma = ‘?‘) return left(@Name,@startIndex-1 ) ; return left(@Name ,@StartIndex-1 ) + @luanma; end ; GO CREATE function [dbo].[TrimWord] (@Name varchar(500)) returns varchar(500) as begin declare @ret as varchar(500) set @ret = @Name ; if( @ret like ‘*%‘) begin set @ret = right( @ret , len(@ret) - 1) ; end if( @ret like ‘%办事处‘) begin set @ret = LEFT( @ret , len(@ret) - 3) ; end if( @ret like ‘%街道‘) begin set @ret = LEFT( @ret , len(@ret) - 2) ; end if( @ret like ‘%行政事务管理中心‘) begin set @ret = LEFT( @ret , len(@ret) - 8) ; end if( @ret like ‘%社会事务管理处‘) begin set @ret = LEFT( @ret , len(@ret) - 7) ; end if( @ret like ‘%生态管理委员会‘) begin set @ret = LEFT( @ret , len(@ret) - 7) ; end if( @ret like ‘%管理委员会‘) begin set @ret = LEFT( @ret , len(@ret) - 5) ; end if( @ret like ‘%建设委员会‘) begin set @ret = LEFT( @ret , len(@ret) - 5) ; end if( @ret like ‘%街道办事处筹备组‘) begin set @ret = LEFT( @ret , len(@ret) - 8) ; end if( @ret like ‘%管理分局‘) begin set @ret = LEFT( @ret , len(@ret) - 4) ; end if( @ret like ‘%管委会‘) begin set @ret = LEFT( @ret , len(@ret) - 3) ; end if( @ret like ‘%生活区‘) begin set @ret = LEFT( @ret , len(@ret) - 3) ; end if( @ret like ‘%工矿区‘) begin set @ret = LEFT( @ret , len(@ret) - 3) ; end if( LEN(@ret) <5) return @ret ; if( @ret like ‘%县%‘) begin set @ret = Right( @ret , LEN(@ret) - CHARINDEX(‘县‘,@ret) ) ; end if( LEN(@ret) <5) return @ret ; if( @ret like ‘%市%‘) begin set @ret = Right( @ret , LEN(@ret) - CHARINDEX(‘市‘,@ret) ) ; end if( LEN(@ret) <5) return @ret ; if( @ret like ‘%省%‘) begin set @ret = Right( @ret , LEN(@ret) - CHARINDEX(‘省‘,@ret) ) ; end return @ret ; end ; GO
使用如下SQL查询:
select distinct dbo.TrimWord( dbo.tidy( name) ) as TName ,*
into nt19
from town
where LEN(name) >2
select *
into nt20
from nt19
where ID in (
select ID from
(
select TName,MIN(ID) as ID
from nt19
group by TName
) as t
)
nt20 就是整理好的。
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