Richard, Richard Megginson schrieb: > You have a couple of options. If you care about referential integrity, > you will need to create presence and equality indexes for the above > listed attributes. If you don't care about referential integrity, you > can simply disable that plug-in. Great! Disabling the plug-in solved the problem. The entries could be deleted in less than a minute. Thanks for your help. Dirk Kastens