Re: RDBMS concepts

Sankaran said: > Hi All, > > I am looking for some site / book with questions / examples / case > studies etc. on RDBMS concepts? Can some one point me to such materials? > > Sorry to post it under Informix group, but I could not find any better > forum... Have you tried www.google.com ? -- Bye now, Obnoxio "C'est pas parce qu'on n'a rien ' dire qu'il faut fermer sa gueule" - Coluche did i mention i like nulls? heck, i even go so far as to say that all columns in a table except the primary key could/should be nullable. this has certain advantages, for example, if you need to insert a child record and you don't have a parent row for it, just do an insert into the parent table with the primary key value (everything else null), and voila, relational integrity is preserved. but this is, admittedly, a bit controversial among modellers. --r937, dbforums.com

Obnoxio The Clown wrote: > Sankaran said: > >>Hi All, >> >> I am looking for some site / book with questions / examples / case >>studies etc. on RDBMS concepts? Can some one point me to such materials? >> >> Sorry to post it under Informix group, but I could not find any better >>forum... > > > Have you tried www.google.com ? > ..and search for Chris Date. He has written "The book". Cheers Serge -- Serge Rielau DB2 Solutions Development DB2 UDB for Linux, Unix, Windows IBM Toronto Lab