yes... But attribute of this table asl has an instance .. that two year of releases are possible also... I'm speaking of a very trivial case.
On Fri, May 14, 2010 at 2:44 PM, silly sad <s...@bankir.ru> wrote: > On 05/14/10 12:42, Trinath Somanchi wrote: > >> Hi All, >> >> I have Tree structured database to maintain. >> >> Its as follows. >> >> Vehicles >> > > u r talking about a single entity vehicles > it is very common to represent a single entity with a single table > > and IF u also have to have an entity "class of vehicles" > u r free to declare the second table named "class" > > and IF u also have to represent a reference of manfacturers, another one > table u have to create then. > > that's trivial case > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql > -- Regards, ---------------------------------------------- Trinath Somanchi,
