Programming language · Programming, Data & AI
SQL
Standardised by ISO and spoken, with dialect differences, by PostgreSQL, MySQL, SQL Server, Snowflake and nearly every other relational system, SQL describes which data you want rather than how to compute it step by step. Analysts, developers and data engineers all need it. SELECT is learnt in an afternoon; joins, grouping and NULL handling are where understanding, and most errors, live.
Maker's site: www.iso.org/standard/76583.html (opens in a new tab) (no commission).
Where it is used
The topics that name this programming language, with the reason.
- ProgrammingDatabases and SQLThe relational query language.
- Data & AISQL for analysisThe analyst's first real tool.
Fields: Programming and Software Development, Data, Analytics and AI
Courses for this tool
423 courses teach this tool. The first 6 are listed; details and the provider link are on each course page.
Last reviewed 26 September 2026 · Getting Digital