SET NOCOUNT ON; declare @I_PCity table(IPStart nvarchar(255), Area nvarchar(255),CityID int,IPID int )declare @IPStart nvarchar(255),@diana int, --存放點@dianb int,@dianc int,@liea bigint, -- 存放列 @lieb bigint,@liec bigint,@lied bigint,@intlon bigint --存放化為的整數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) --第一個點的下標set @dianb= charindex('.',@IPStart, @diana +1 ) --第二個點的下標set @dianc= charindex('.',@IPStart, @dianb +1 ) --第三個點的下標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) --拼為整數update I_IPCity set IP3 =@intlon where IPID= (select top 1 IPID from @I_PCity)delete top(1) from @I_PCityend

返回前臺所查到的結果：

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), --存放傳入的數據@diana int, --存放點@dianb int,@dianc int,@liea bigint, -- 存放列 @lieb bigint,@liec bigint,@lied bigint,@intlon bigint --存放化為的整數set @IPStart= @str; --傳入的IP'1.11.6.6'-- set @IPStart= '1.11.6.6'; set @diana= charindex('.',@IPStart) --第一個點的下標set @dianb= charindex('.',@IPStart, @diana +1 ) --第二個點的下標set @dianc= charindex('.',@IPStart, @dianb +1 ) --第三個點的下標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) --拼為整數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'在表中對應的數據
END
exec ProIP '61.177.117.6'

說明：

'Arg.ea' 對應位置:1 2 3 4 5 6charindex('.','Arg.ea') >0 --如果大于零，則表示字符串Area中含有字符串CityName； 此例為truecharindex('.','Arg.ea',2 ) -- 從第二個位置后，也就是從 字母'r'后開始找，先判斷 ‘g’是否為‘.’ ，為否；繼續判斷‘.’是否為‘.’，此表達式為trueSUBSTRING('Arg.ea',1,2) --截取 字符串 'Arg.ea'中 第一個位置到第二個位置 ；也就是‘Ar’

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轉載于:https://www.cnblogs.com/woloveprogram/p/4727591.html

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