To recreate the auto increment key:
If you can go to table  - design -  set Identity Specification (or Identity for 
SQL Sever 2000) to Yes.

Also, if you need to reset the
identity value of the table:

DBCC CHECKIDENT can reseed (reset) the
identity value of the table. For example, YourTable has 25 rows with 25
as last identity. If we want next record to have identity as 35 we need
to run following T SQL script in Query Analyzer.
DBCC CHECKIDENT (yourtable, reseed, 34)
Hope this helps.

Maya

--- On Thu, 4/23/09, Dawn Sekel <[email protected]> wrote:

From: Dawn Sekel <[email protected]>
Subject: Can you share a Coldfusion query to convert field to auto increment?
To: "sql" <[email protected]>
Date: Thursday, April 23, 2009, 9:10 AM


Hi:

I have a customer whose programmer has vanished and he is trying to get his 
application back on line.  I'm an intermediate CF programmer and I've managed 
to get everything working again except for one problem.  His database is hosted 
- and somehow, when he restored his application, the fields in his database 
lost their autonumbering capability.  I tried creating the next number right 
before the insert by getting the max value of the field and then adding 1 to 
it, and that works for the most part, but occassionally, we are seeing the old 
"Violation of PRIMARY KEY constraint 'PK_TblTestAnswers'. Cannot insert 
duplicate key in object 'dbo.TblTestAnswers' - and I can't figure out why 
unless to users are somehow hitting the same page at exactly the same time and 
clicking submit.  So the only thing I can think of to fix the problem is to 
recreate the autoincrment key fields somehow.

Does anyone have any Coldfusion code to insert a new autoincrement key field in 
to a MS SQL table and then remove the old one?  Or is there a way to modify a 
key field to autoincrement? 

Thanks in advance for any advice. 



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