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LAST_INSERT_ID() with threads

John Schretz
Ranch Hand

Joined: Sep 10, 2008
Posts: 188
I need to get the id from a previous insert to use as a foreign ke in another table
I am using the connection pool below in a web application.
Can i use LAST_INSERT_ID() in this configuration whithout the risk of getting the wrong value?

If not what is another way of doing this?

Paul Clapham
Bartender

Joined: Oct 14, 2005
Posts: 18541
    
    8

At the very least, you will want to send the LAST_INSERT_ID query to the same connection which did the INSERT statement. None of the code you posted seems to show an example of what you are doing.
John Schretz
Ranch Hand

Joined: Sep 10, 2008
Posts: 188
Below is what i am currently doing but i am using SELECT @@IDENTITY AS IDENTITY
This is giving me a problem so i am looking for an laternative

thanks
john

Paul Clapham
Bartender

Joined: Oct 14, 2005
Posts: 18541
    
    8

In that code I don't see where you do an insert before you do the SELECT @@IDENTITY query. Maybe that's your problem.
John Schretz
Ranch Hand

Joined: Sep 10, 2008
Posts: 188
Paul Clapham wrote:In that code I don't see where you do an insert before you do the SELECT @@IDENTITY query. Maybe that's your problem.


OMG you are the man. That was one of my other problems.
I must have overwrote the execute line when I pasted:


It helps to have a second pair of eyes.
This may relate to the second problem also.

Aside from that do you see any other flaws in the logic?
thanks
john
 
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subject: LAST_INSERT_ID() with threads