In Fortnite, squad members may share resources and communicate using unique codes or symbols, which can be equated to foreign keys in SQL. A foreign key establishes a connection between two tables, ...

Learn how to add and remove Primary Keys from an Access database table. The primary key's purpose is to promptly associate data from multiple tables and combine that data.

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