• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

LAST_INSERT_ID() with threads

 
Ranch Hand
Posts: 188
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
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?

 
Marshal
Posts: 28271
95
Eclipse IDE Firefox Browser MySQL Database
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
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
Posts: 188
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
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
Marshal
Posts: 28271
95
Eclipse IDE Firefox Browser MySQL Database
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
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
Posts: 188
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

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
 
Consider Paul's rocket mass heater.
reply
    Bookmark Topic Watch Topic
  • New Topic