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Foreign keys provide the building blocks for relating tables. For example, in a customer order table, the salesperson field might contain an employee number.
For National 5 Computing Science, revise the use of primary and foreign keys and the difference between flat file and relational databases.
Foreign workers accounted for much of the euro zone's economic growth since the pandemic and could help the bloc overcome the economic constraints of an ageing and shrinking labour market, a ...
NEW DELHI (Reuters) -Resolving friction along their border and the ability to maintain peace are fundamental for mutual trust between India and China, Indian Foreign Minister Subrahmanyam ...
A primary key is a field used to uniquely identify every record in the database. Sometime primary keys are obvious, for example a car license plate could be used to uniquely identify cars. Often ...