What type of database uses tables consisting of rows and columns to organize data, where each table has a primary key and can have one or more foreign keys to establish relationships with other tables?
Document databases
Relational databases
Flat files
Key/value databases
Relational databases organize data into tables that consist of rows and columns. Each table has a unique primary key that identifies each record. Foreign keys are used to link two tables together, establishing a relationship between the data. Non-relational databases do not use such a structure; for example, document databases store data in document-like structures, and key/value databases store data as pairs without the rigid structure of tables with relational keys.
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