Possibly, but I have not tested on my configuration and cannot test yours, which is almost certainly different.
Because you’re looking in databases, please also look in a job database at the Configuration table, and you probably will find settings not in the server database, e.g. blockhash, and filehash (mine are set to defaults). While I’m not sure what to say about those, passphrase differences are from job database having only hash.
Procedure test is a good plan, but a somewhat unconventional path may expose you to greater change risk.
EDIT:
Entire configuration backup responds to a similar question, showing your plan was probably fine in 2017. 
Lead developer comments like that increase my confidence that it will remain fine, but please test it yourself