If you are sharing a session/connection between 2 threads, and two of those threads try to execute statements at the same time, then you might see this kind of problem.

You probably need to either (a) use a connection pool or (b) synchronise your entire access to the DB.

On 2012-04-17 11:05, Thomas wrote:
        Class.forName("org.h2.Driver");
this.con = DriverManager.getConnection("jdbc:h2:"+dbname, "sa", "");
        con.setAutoCommit(true);

I just set it once when getting the connection.
That's it, nothing fancy.

Op dinsdag 17 april 2012 11:00:30 UTC+2 schreef Noel Grandin het volgende:

    What does your JDBC URL looks like?
    ie. what parameters are you using.

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