A while ago I spent a day building a little app for a colleague. It was more a prototype than anything and it was only a test. It had 95 fields in one large flat table. Well it turns out he has been using it and there are now a few thousand records. It is not a professional program and he doesn't want to change anything since it is working fine. What problems can he expect if it keeps on growing? The fields are mostly numerical.

Thanks,

Vim