I want to add an extra table on my wp database and I intend to
query it with a custom script that will be embedded to wordpress.
I’m worrying if this is a safe way to do it, or I should go with the
option of adding an entirely new database, not a table on wp, as future
updates of wordpress system might wipe my custom table? Any experience
with such a scenario. Is this a valid risk/worry, or I should just create
the table on the wp database, instead of creating another db, and connect
to that new db in my custom script.
Read more here: add table to wordpress database