Database Access
By default SlickStack does not include any frontend database access tools to improve security. If you think about database access in regard to WordPress sites, its really not needed very often except in cases of database optimization work, or emergency situations, etc. Most of the general WordPress settings can be adjusted via the WP Admin, for example.
However if you want to include Adminer in your public root, which is a lightweight altnernative to phpmyadmin, simply change your ss-config settings as appropriate and run ss-install again.