If WordPress is installed into a MySQL database that also houses site data from another CMS, is it possible to use a plugin like Advanced Custom Fields to map it so WordPress sees a few of the existing (non-WP created) tables? It would be read-only.
The existing site is a real estate listing search site created in the PHP/MySQL-based CMS Builder by Interactive Tools. I have a need to build a dozen or so specialized/regional search sites and would prefer to use WordPress (probably a multiuser installation).
The tables in question house real estate listing data imported from an external source (the area Multiple Listing System). These tables contain hundreds of custom fields and receive incremental updates hourly and full updates nightly.
Looking for the easiest way possible to access this existing data in multiple WordPress sites without rebuilding the existing site (and the datafeed) or using up a lot of overhead duplicating/syncing the data every hour to other database(s).
The existing site uses a table prefix of "cms_".
Thanks in advance for your assistance.