Dynamic values from database to radiant

Hi,

i am very new to radiant, and hoping to convert my organizations
web-site
which is in .php format to a radiant cms on the local machine, and
managed to get it work for static contents, but the problem is… on a
particular webpage we bring certain values from the database
dynamically, whereas in radiant each and every content is from the
radiant_dev database, is there a possibility of adding another database
or the table to the existing structure of the radiant_dev database and
bring the dynamic value to a web page or is there any other solution to
bring data dynamically. thanks in advance.