I actually built a MongoDB query interface for SQL via Python+SQLAlchemy. It allows you to query your relational database just like you would with MongoDB, and in addition use some things (e.g. Joins in queries or &quot;deep querying&quot;) that are not possible using MongoDB.<p>Here&#x27;s the repo:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;adewes&#x2F;blitzdb" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;adewes&#x2F;blitzdb</a><p>The implementation is stable but I&#x27;m still working on finishing Python3 support and documentation.