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A great deal of the databases used today are classified as ‘relational.’ They store data in structured formats such as rows, columns, and tables, each of which is related to each other. Therefore, most modern database management systems (DBMS) are referred to as relationship database management systems (RDBMS).
Relational databases are now in use across many industries such as manufacturing, finance, and various commercial applications. Relationship database management systems allow IT teams and basically all its users to interact and administer a database. They enhance the proper handling of data through basic functions like reading, creating, updating, and deleting entries.
Within the corporate environment, relational database management systems help to maintain integrity of the data in the database. This is done by supporting multiple and even simultaneous user access to the data. They also enhance security of the data by enforcing policy-based and multi-level access to the database.
An RDBMS works by returning specific values we requested from a large pool of data. For instance, one can request, or query in tech parlance, for all customers who have bought a certain product within the past week. It will return only the values you have queried, filtering out all other related information in the database.
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Oracle Database XE
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