Modern in appearance and simplicity, just about anyone can use the surprisingly full-featured Ninox for Mac database app. It also interfaces directly with Ninox's online service.

What does relational database actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Use INDEX and MATCH for simple database queries in Excel The bigger your spreadsheet, the more you need these, which you can combine with SUM, AVERAGE, and MAX to refine your searches.

Learn about and revise the topics of relational databases and structured query language (SQL) with this BBC Bitesize GCSE Computer Science AQA study guide.