On Wed, 2006-10-18 at 16:36 +0100, Dave Hodgkinson wrote: > On 18 Oct 2006, at 16:08, Nigel Rantor wrote: > > > > > What is your favourite question to guage someone's level of > > expertise in the database field generally, without reference to any > > specific DB. > > What is normalisation? > > When is it acceptable to denormalise? > When I say so :-)