Add your DB connectivity information in
<oracle home of wls forms and reports>/FrmsInst1/config/tnsnames.ora
After adding it here, your users can now connect using their forms related username, password and DB tnsname
<oracle home of wls forms and reports>/FrmsInst1/config/tnsnames.ora
After adding it here, your users can now connect using their forms related username, password and DB tnsname