Databases have been in use since the earliest age of electronic computing, but the vast majority of these were custom programs pen to access custom databases. Unlike modern systems which can be applied to widely different databases and needs, these systems were tightly linked to the database in order to gain speed at the price of flexibility. As computers grew in capability this tradeoff became increasingly unnecessary, as a number of general-purpose d...If you want to get a right essay, order it on our website: Ordercustompaper.com
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