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 Auto-incrementing with leading zeros
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Starting Member

United Kingdom
11 Posts

Posted - 08/10/2006 :  08:57:26  Show Profile  Reply with Quote
Hi All,
I need to set up a kind of identity insert that gives an output in the format: 00001, 00002, 00003 etc. Is there a formatting option for this sort of output using normal identity insert features or do I need to write a function to insert these values (perhaps as text) each time a new record is created?
Sorry if this is really simple but it's only my 4th day in this job!

Flowing Fount of Yak Knowledge

5581 Posts

Posted - 08/10/2006 :  09:02:39  Show Profile  Visit harsh_athalye's Homepage  Click to see harsh_athalye's MSN Messenger address  Send harsh_athalye a Yahoo! Message  Reply with Quote
It will be better if you use IDENTITY all formatting (like padding zeros in the begining) at the front-end level if possible.

Harsh Athalye
"Nothing is Impossible"
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Starting Member

United Kingdom
11 Posts

Posted - 08/10/2006 :  09:42:32  Show Profile  Reply with Quote
Thanks Harsh, I thought of this first of all but the problem I have is that other people wil access the table from their own applications and I really need everyone to see a single unified view of the data without the need for formatting instructions.
Any other ideas?
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In (Som, Ni, Yak)

17689 Posts

Posted - 08/10/2006 :  10:07:42  Show Profile  Reply with Quote
use a computed column to format the zero padding

create table #table
	id	int identity(1,1),
	key_id	as right('00000' + convert(varchar(5), id), 5),
	col	int

insert into #table (col)
select	10

select * from #table

id          key_id     col         
----------- ---------- ----------- 
1           00001      10


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Starting Member

United Kingdom
11 Posts

Posted - 08/10/2006 :  11:25:29  Show Profile  Reply with Quote
Thanks KHTan, that's just what I needed!
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Premature Yak Congratulator

22864 Posts

Posted - 08/10/2006 :  12:11:56  Show Profile  Send madhivanan a Yahoo! Message  Reply with Quote
Use only identity column. If you use front end application, use format function to format the number


Failing to plan is Planning to fail
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