Specific examples are shown on the following individual pages, organized by classes and functions provided by SQLAlchemy, that are typically used when building your own applications.
The following open source projects can serve as example code for you as you build your own applications with SQLAlchemy.
databases (project homepage and PyPI page provides asyncio support with an SQLALchemy Core interface for common relational databases such as MySQL, PostgreSQL and SQLite. This is handy for integrating with asynchronous I/O web frameworks like Sanic. The project is open sourced under the BSD 3-Clause "New" or "Revised" License.
(homepage) is a
capture the flag (CTF) hacking web app
built with SQLAlchemy and Flask.
The application can be used as-is to run CTF events, or the code can be
modified for custom rules on hacking scenarios. CTFd is open sourced under the
Apache License 2.0.
indico (project website, documentation and sandbox demo) is a Flask-based web app for event management that is powered by SQLAlchemy on the backend. The code for this project is open sourced under the MIT license.
sandman2 (project documentation and PyPI package information) is a code library for automatically generating RESTful APIs from existing database schemas. This approach is handy for solving straightforward situations where you want to put an abstraction layer between one or more applications and your relational database to prevent or reduce direct database access.
The sandman2 project is provided under the Apache License 2.0.