On Wednesday 18 July 2007 14:29, "Roderick A. Anderson" <raanders@xxxxxxx> wrote: > In the mean time if the script gets triggered again and the first > instance isn't finished the second needs to not be able to select those > records already being handled. select for update won't do that. It will sit waiting for locks on the same rows the first process is handling. -- "Remember when computers were frustrating because they did exactly what you told them to? That actually seems sort of quaint now." --J.D. Baldwin