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These earliest databases were flat file databases. The flat-file style of database works well for small amounts of data that need to be organized to be read and edited by hand. Flat file databases are made up of tables that store a set number of characters in each field. The individual tables are not linked and are difficult to search and navigate. In order to view a particular record in a flat file database, the end user would have to sequentially navigate through all the records that came before it. In addition, the system itself does not detect when a file is being used or modified. Therefore, if two or more users are simultaneously accessing the data, it is possible for a data to be erased by multiple processes that are fighting to save new data at the same time...
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