SET NOCOUNT ON; declare @I_PCity table(IPStart nvarchar(255), Area nvarchar(255),CityID int,IPID int )declare @IPStart nvarchar(255),@diana int, --存放点@dianb int,@dianc int,@liea bigint, -- 存放列 @lieb bigint,@liec bigint,@lied bigint,@intlon bigint --存放化为的整数insert into @I_PCity(IPStart, Area, CityID, IPID ) select IPStart, Area, CityID, IPID from I_IPCity (nolock) where IPID>= 430000 and IPStart is not null and IP3 is null-- while( exists(select top 1 * from @I_PCity))beginset @IPStart= (select top 1 IPStart from @I_PCity );set @diana= charindex('.',@IPStart) --第一个点的下标set @dianb= charindex('.',@IPStart, @diana +1 ) --第二个点的下标set @dianc= charindex('.',@IPStart, @dianb +1 ) --第三个点的下标set @liea = SUBSTRING(@IPStart,1,@diana-1) --第一列的值 set @lieb =SUBSTRING(@IPStart,@diana+1,@dianb-@diana-1 )--第二列的值 set @liec =SUBSTRING(@IPStart,@dianb+1,@dianc-@dianb-1 )--第三列的值set @lied =SUBSTRING(@IPStart,@dianc+1, LEN(@IPStart))--第四列的值set @intlon= @lied+(@liec*1000)+(@lieb*1000000)+(@liea*1000000000) --拼为整数update I_IPCity set IP3 =@intlon where IPID= (select top 1 IPID from @I_PCity)delete top(1) from @I_PCityend
返回前台所查到的结果:
USE [91hurong] GO /****** Object: StoredProcedure [dbo].[ProIP] Script Date: 08/13/2015 08:40:16 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[ProIP]-- Add the parameters for the stored procedure here@str varchar(50) AS BEGINdeclare @IPStart nvarchar(255), --存放传入的数据@diana int, --存放点@dianb int,@dianc int,@liea bigint, -- 存放列 @lieb bigint,@liec bigint,@lied bigint,@intlon bigint --存放化为的整数set @IPStart= @str; --传入的IP'1.11.6.6'-- set @IPStart= '1.11.6.6'; set @diana= charindex('.',@IPStart) --第一个点的下标set @dianb= charindex('.',@IPStart, @diana +1 ) --第二个点的下标set @dianc= charindex('.',@IPStart, @dianb +1 ) --第三个点的下标set @liea = SUBSTRING(@IPStart,1,@diana-1) --第一列的值 set @lieb =SUBSTRING(@IPStart,@diana+1,@dianb-@diana-1 )--第二列的值 set @liec =SUBSTRING(@IPStart,@dianb+1,@dianc-@dianb-1 )--第三列的值set @lied =SUBSTRING(@IPStart,@dianc+1, LEN(@IPStart))--第四列的值set @intlon= @lied+(@liec*1000)+(@lieb*1000000)+(@liea*1000000000) --拼为整数declare @inta bigintset @inta=(select top 1 IP3 from I_IPCity where IP3>@intlon and IPStart is not null and IPID is not null and IP3 is not null order by IP3 asc)select top 1 * from I_IPCity where IP3<@inta and IPStart is not null and IPID is not null and IP3 is not null order by IP3 desc --返回'61.177.117.6'在表中对应的数据
END
exec ProIP '61.177.117.6'
说明:
'Arg.ea' 对应位置:1 2 3 4 5 6charindex('.','Arg.ea') >0 --如果大于零,则表示字符串Area中含有字符串CityName; 此例为truecharindex('.','Arg.ea',2 ) -- 从第二个位置后,也就是从 字母'r'后开始找,先判断 ‘g’是否为‘.’ ,为否;继续判断‘.’是否为‘.’,此表达式为trueSUBSTRING('Arg.ea',1,2) --截取 字符串 'Arg.ea'中 第一个位置到第二个位置 ;也就是‘Ar’