Online data storage is a virtual storage approach that allows users to use the Internet to store recorded data in a remote network. This data storage method may be either a cloud service component or used with other options not requiring on-site data backup.
A database is the back-end of an application. A DBMS receives instruction from a database administrator (DBA) and accordingly instructs the system to make the necessary changes. These commands can be to load, retrieve or modify existing data from the system.
A DBMS always provides data independence. Any change in storage mechanism and formats are performed without modifying the entire application. There are four main types of database organization:
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