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 ...
If you don't know a database from a spreadsheet, find the simplest, most intuitive program you can, and set it up in that. You shouldn't have to pay more than about $100 for a simple "flat-file" ...
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 ...