When files must be related (customers to orders, vendors to purchases, etc.), a relational database manager is used, not a flat file manager. Flat files can be related, but only if the ...

Relational databases can be implemented to help reduce (but not remove) data redundancy, which improves data consistency and integrity. Relational database design attempts to achieve this by ...

Flat file databases cause insertion, deletion and update anomalies. Use of relational databases where primary and foreign keys are used to link tables helps overcome these issues. Analysis Inputs ...