The TIOBE Index is an indicator of which programming languages are most popular within a given month. According to the TIOBE ...

Developers often dispute the merits of SQL as a legitimate programming language, but this misses the point. SQL is a powerful 4GL for accessing data.

Top programming languages: Why one language dominates when it comes to new technologies One coding language stands out for the IEEE - but it's not without its weaknesses.

Open source logic programming language compiles to SQL and runs on Google BigQuery, with experimental support for PostgreSQL and SQLite.