Solved

Gernate Alphanumeric series like AA001,AA002....AA999,AB001....... Using C# or SQL2005

Posted on 2008-10-01
9
558 Views
Last Modified: 2012-08-13
Gernate Alphanumeric series like AA001,AA002....AA999,AB001....... Using C# or SQL2005
0
Comment
Question by:PankajSaluja
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
9 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 22613160
do you want that as primary key automatically generated?
well, don't.  you might generate a plain sequence (identity), and then present that value into the AA001 display.
0
 

Author Closing Comment

by:PankajSaluja
ID: 31501917
Yea, u got the question
i want present value this sequence like AA001 , AA002...AA999 , AB001.....
So give the complete solution if possible in SQL 2005 else C# , ASP.net2.0
0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 22613600
check this table out:

declare @t table 
( id int identity
, id_display as char(65 +  (id / (26*1000) ) ) + char(65  + ( (id / 1000)%26)   ) + right( '00' + cast( (id % 1000 )  as varchar(3)),3)
)
 
 
 
and insert some rows, and see the id_display
 
 
 
declare @x int
set @x = 1
while @x < 2000
begin
  insert into @t ( id ) values (@x)
  set @x = @x + 1
end
 
select * from @t

Open in new window

0
Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

 

Author Comment

by:PankajSaluja
ID: 22614246
Solution is ok
But there is slight mistake

  insert into @t ( id ) values (@x)
  set @x = @x + 1

Id is identity column so we can not insert manually, so we to take some other column to enter the values

and i have create a function which return a single varchar value which would help in gernating unique alpha numeric id

here is function


CREATE function [dbo].[GetIDSeries] (@ID int)    
returns varchar(10)    
as    
begin    
declare @Ret_Value varchar(10)  
  
select @Ret_Value =  char(65 +  (@ID / (26*1000) ) ) + char(65  + ( (@ID / 1000)%26)   )   
+ right( '00' + cast( (@ID % 1000 )  as varchar(3)),3)  
  
return @Ret_Value  
  
end    

Open in new window

0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 22614315
yes, sorry for the "mistake", I had created the test table without identity...
0
 

Author Comment

by:PankajSaluja
ID: 22618012
that 's ok, no problem , happens  Appraisable for quick response

one thing more
suppose we need series like AA000001.....AA999999,AB000001 then i should go....
Means  AA<6digits>  then AB000001
0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 22618066
you will have only to change the 1000 into 1000000 and the (3) into (6), and use BIGINT instead of INT...

select @Ret_Value =  char(65 +  (@ID / (26*1000000) ) ) + char(65  + ( (@ID / 1000000)%26)   )   
+ right( '00' + cast( (@ID % 1000000 )  as varchar(6)),6) 
 
 

Open in new window

0
 

Author Comment

by:PankajSaluja
ID: 22618340
yea this is ok
but have change this line
+ right( '00' + cast( (@ID % 1000000 )  as varchar(6)),6)
as
+ right( '00000' + cast( (@ID % 1000000 )  as varchar(6)),6)
to get
AA000001.....AA999999,AB000001


0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 22618378

yes, good catch!
0

Featured Post

NFR key for Veeam Backup for Microsoft Office 365

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article is for Object-Oriented Programming (OOP) beginners. An Interface contains declarations of events, indexers, methods and/or properties. Any class which implements the Interface should provide the concrete implementation for each Inter…
In this article I will describe the Copy Database Wizard method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

617 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question