Question

Split function

Asked by: griffaw

I have two MS SQL tables
1. containing in stock model numbers.
2. containing all model numbers and matching  images

The model numbers are made up of letters and numbers seperated by dashes. example:

25063-88-86-25-T833-T-A

The first set of numbers is the series. Subsequent sets of numbers refer to pieces within the series. example

25063=series (alphanumeric any length)
88=sofa (identifies specific piece)
86=love seat (identifies specific piece)
25=chair (identifies specific piece)
Note: piece numbers are constant. ie: 88 always means sofa regardless of series. However, the piece identifiers may appear in any order. For example
25063-88-86-25
or
25603-86-88-T456-etc

I need to pull an in stock model from the instock table
compare that to the model numbers in the allmodels table
grab the image filename from the allmodels table in the row that contains an exact match on the series number, and contains the most matching parts of the instock model and contains the most total pieces.

Example
instock model #: 25603-86-88-T456

there are 3 images in this series (allmodels table). All 3 have matching series and piece numbers. I need the one that contains the most pieces. In this example, i need #1
1. 25603-86-88-54-T456-23-12
2. 25603-88-T456
3. 25603-86-88-T456-32-65

This is making my head hurt.

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Asked On
2009-11-05 at 06:51:45ID24874574
Tags

ASP

,

vbscript

,

split

Topics

SQL Server 2005

,

Active Server Pages (ASP)

,

VB Script

Participating Experts
3
Points
500
Comments
3

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Answers

 

by: chapmandewPosted on 2009-11-05 at 06:54:53ID: 25750063

pass your string to this function with a '-' as the delimiter

http://blogs.techrepublic.com.com/datacenter/?p=375

 

by: aneeshattingalPosted on 2009-11-05 at 07:56:49ID: 25750795

use this function CREATE FUNCTION [dbo].[ufn_CountChar] ( @pInput VARCHAR(1000), @pSearchChar CHAR(1) )
RETURNS INT
BEGIN

DECLARE @vInputLength        INT
DECLARE @vIndex              INT
DECLARE @vCount              INT

SET @vCount = 0
SET @vIndex = 1
SET @vInputLength = LEN(@pInput)

WHILE @vIndex <= @vInputLength
BEGIN
    IF SUBSTRING(@pInput, @vIndex, 1) = @pSearchChar
        SET @vCount = @vCount + 1

    SET @vIndex = @vIndex + 1
END

RETURN @vCount

END
GO


SELECT TOP 1 *
from urTable
ORDER BY  [dbo].[ufn_CountChar] (urColumn, '-' ) desc

 

by: agnomiePosted on 2009-11-05 at 08:05:49ID: 25750896

I suggest you run a statement that extracts meaningful information from the strings and puts it into a proper table of the sort SQL really likes.

Then your data will be much easier for you to manipulate.

I have written the code that extracts series and piece numbers for one string. (see attached code).

If you would like to go with this idea, then you or I can extend the script so that it loops through multiple strings, so that all your series and piece data will go into the table.

Once the series and piece numbers are stored in a table, then the sort of queries you want to run will
become very easy. Also, the numbers like '88' for sofa can then reference another table with the names of the types of pieces that correspond to the numbers. Then your data will be stored in a meaningful way.


create table SeriesAndPieces (Series varchar(20),Piece varchar(20)) 
declare @pos int
declare @list varchar (100)
declare @series varchar(20)
declare @piece varchar(20) 
set @list='25603-86-88-54-T456-23-12' 
--(using a single string just for this example) 
SET @pos = CHARINDEX( '-', @list)  
set @series=substring(@list,1,@pos-1)
set @list=replace(@list, @series+'-','') 
while @list<>''
	begin 
	SET @pos = CHARINDEX( '-', @list)  
	if @pos<>0
		set @piece=substring(@list,1,@pos-1)
	else
		set @piece=@list 
	set @list=replace(replace(@list,@piece+'-',''),@piece,'')
	insert into SeriesAndPieces values(@series,@piece) 
	end 
select * from SeriesAndPieces	

                                              
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