SQL (Structured Query Language) is the most widely used languages for querying relational databases. It is fairly simple to understand because it uses understandable words (like "SELECT", "FROM", "LIMIT", "JOIN") instead of code. It can be used with many different databases like MySQL, PostgresSQL, SQLite and others. The syntax may change slightly when using different databases.
The projects listed here utilize MySQL or SQlite databases. Click on the link to view specific SQL projects.
This shows various queries on the sakila MySQL database.
Use historical weather data to predit weather during a trip timeframe using Python, SQLAlchemy, SQLite and Flask.
Source: Beat of Hawaii