Hi Navodit,
The easiest thing you can do to attach a database is to use ODBC. If you
have on your system an ODBC Driver say like Dbase or Access then you can
just use a file. You set up an ODBC connection and then use SQL to access
your data. The best part of doing this is that you don't need
Look up Lex Spoon's chapter on Squeak networking:
www.iam.unibe.ch/~ducasse/FreeBooks/CollectiveNBlueBook/parsia%202.pdf
For client-server network programming, you might look at
MaClientServer, which is part of Magma, an OO database for Squeak. You
can load it separately from Magma. Search mail