Getting auto-generated key from row insertion in spring 3 / PostgreSQL 8.4.9

Question

I would like to retrieve the auto-generated id from a row insertion, but I get a NullPointerException

Here is the code :

long result = 0         


        

Answer 1

Take a look at this post, especially the accepted answer of using the INSERT...RETURNING syntax:

How to get a value from the last inserted row?

This the best way to get this value in PostgreSQL as you only make one network round trip and it's done as a single atomic operation on the server.