A data file that is not related to or does not contain any linkages to another file. It is generally used for stand-alone lists. When files must be related (customers to orders, vendors to purchases, ...
The relational database so dominates the thinking of information technology and business professionals that its presumed suitability for essentially all data management tasks is rarely questioned. But ...
The data has been organised into a table structure with appropriate data types. It is persistent, which means the data will be stored if the computer is turned off or there is power failure.
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