No permission for read-write access to database XYZ

This error usually means that Firebird server cannot open the database file. Either you (connection string only contains the file path) or the Firebird server (when the connection string has hostname: prefix) doesn't have sufficient privileges on the database file or directory containing it. So, check the privileges (file owner and permission) on the database file and fix them. Please read FAQ #102 for more details

Do you find this FAQ incorrect or incomplete? Please e-mail us what needs to be changed. To ensure quality, each change is checked by our editors (and often tested on live Firebird databases), before it enters the main FAQ database. If you desire so, the changes will be credited to your name. To learn more, visit our add content page.