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3 Jun 2019 ... Updated 6/3/19 to include our review of PDF Reader Pro - View, Annotate, Form Filler—a free just-the-basics PDF editor that does what it says ... and a tuple is one row of such a relation The possible range of values of an attribute Aj is the domain Dj Attributes of relations must have distinct names; in the model the order of the columns will be of no formal concern More than one attribute of a relation can have the same domain Two identical domains in one tuple could occur in a relation describing an inventory of automobiles, where each car has two attribute columns listed with the domain color, one for the exterior and one for the interior of the vehicle This permits a computation to match the interior color to the color of the exterior ID icon, online pdf editor for windows 10 free PDF Editor - Download
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