Database
A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS). Together, the data and the DBMS, along with the applications that are associated with them, are referred to as a database system, often shortened to just database.
Relational database
Relational database – a database structured to recognize relations between stored items of information.
Relational databases are used in every nowadays sphere to connect data from different tables into one system
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