Table contention

Hi there our application has multiple process paths that run at random times - but constantly...

Several of these processes write to the same table and at times we're seeing failed DB transactions. I assume it is due to DB contention - because if I stop 2 of the three processes - the single one runs perfectly.

I am after some advice on how I might go solving the issue.

I am tempted to lower the isolation level to READ COMMIT. But will this solve the issue? And do I do it just in the SQL transaction in my application code? Session or global?

And to complicate matters, perhaps... is that we use an ORM in our apllication code.

As always - thanks very much for your help!