inheritance, Database Management System

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what is relationship inheritance and attribute inheritance

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What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.

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Define NULL value NULL value NULL means something is unknown. It does NOT mean null (the digit 0). Null is as well employed as attribute value for a particular entity in which

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Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal

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#, How to use Oracle

How to use Oracle

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