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

SQL-based relational servers are built to handle the demands of financial transactions, designed around the tenets of ACID: Atomicity, Consistency, Isolation, and Durability.

For technical clarification, databases come in two flavors: relational and non-relational. Relational (SQL) databases store data in tables with strictly-defined relationships between tables.

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

What made SQL more successful was the advent of the relational database. First designed by IBM computer scientist E. F. Codd in 1970, relational databases organize data into rows and columns so it ...

Relational databases for operations on large data sets are contraindicated because SQL queries tend to consume many CPU cycles and thrash the disk as they process data.

When duplication is necessary, users can employ SQL to duplicate data for queries, and for future use. Migration strategies and tools are then explained by McCauley, using AWS Database Migration ...

For example, if your load triples overnight, how quickly can you upgrade your hardware? The second scenario can be too difficult to manage with a relational database in general.

Benefits of the Longer Route Of course, many databases do have a limit on the length of SQL statements, but you might be surprised how far one can go. This charac­teristic of relational closure is ...