When are there circumstances in which it makes sense to employ union compatibility between two select statements that are made from the same table?

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Q: When are there circumstances in which it is appropriate to employ union compatibility between two…

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Q: In what circumstances does it make sense to assume that two select statements from the same database…

A: Introduction: Union compatibility is achieved when both tables contain the same amount of attributes…

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Class

Object Oriented Programming System (OOPs) is a programming model built on the perception of “objects” that contains data and methods. The major purpose of Object Oriented Programming is to increase the maintainability and flexibility of programs. Object Oriented Programming gets together data and its behavior (methods) in a single location (object) which makes it easier to understand.