Anybody know of a easy to follow list of things to do run RBase (DOS and Windows) on Windows XP? My understanding is that it is really Windows NT in Win98 clothes, but I would like to try it.
Mike Sinclair Fred Antrobus wrote: > Putting a null rule on the column may be appropriate if having a value in > the column is a requirement. > If the data in the column is optional (as in somtinme you would like to > leave the field blank.) > then you do not want to apply the rule. > > The FK means, IF you are going to have a value in the column, that value > MUST exist in the PK column first. > > Fred > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On > Behalf Of Jim Blackburn > Sent: Tuesday, November 27, 2001 1:00 PM > To: Rbase-L@Sonetmail. Com > Subject: Constraints > > I have a table with a Foreign Key that references a Primary Key in another > table. I was just surprised to see that the Foreign Key field can be changed > to null. > > Is a not null rule the appropriate way to ensure the field is valid? > > Thanks for any advice, > > Jim Blackburn > Kodiak
