No. The database layout is subject to continuous change. Every upgrade, even from one patch level release to the next, might change the database layout. Because of that, it is also not advisable to integrate on the database level (e.g. for data warehousing/dashboards).
We use MessageBird. At the moment this can’t be changed.
For additional information and FAQ have a look at the other FAQ sections, e.g. in the Installation and upgrade guide.