Your best bet is going to be installing DWCS6 as part of your CC subscription and using that until you understand how to code it yourself in CC. It doesn't look like any of the old database stuff that was removed is going to come back officially, unless it's added by third party extensions. I could be wrong and maybe enough people will complain in the bug report/feature request to convince Adobe to bring it back in some form, but hope isn't going to get you back up and running.
Here's some instruction on how to get DWCS6 added to you machine as a Cloud Subscriber: Download previous versions of Adobe Creative applications
Here's the feature request/bug report form: Adobe - Feature Request/Bug Report Form
Keep in mind, the features that were removed, were removed because they were becoming outdated. PHP and mySQL are changing over time like anything else online and, depending on what your server has installed or installs in the future, some of the older methods used by the older versions of DW may simply stop working.
You may also benefit from purchasing some of the paid extensions available at DMXZone. I'm not 100% sure if they include everything you're looking for, but someone should be around that knows for sure.