Odoo has a "DB Manager" built in, so I would avoid editing the DB manually.
It should be fairly obvious how to create a new DB (via Odoo UI), although how to then access it may not be (we need to tweak the default settings). Please see this thread and/or the bug.
I'll try to rebuild and update Odoo soon so that's fixed OOTB, but after following that instruction, you should be good to go.
I would avoid manually editing the Postgres DB
Odoo has a "DB Manager" built in, so I would avoid editing the DB manually.
It should be fairly obvious how to create a new DB (via Odoo UI), although how to then access it may not be (we need to tweak the default settings). Please see this thread and/or the bug.
I'll try to rebuild and update Odoo soon so that's fixed OOTB, but after following that instruction, you should be good to go.