Think about a student database with the StudentID as the main key and the Major, Age, MaritalStatus, and HomeZipCode indexes (all secondary keys). If the institution requested a list of MIS or computer science majors who were over 25, married, and from the 45462 zip code OR computer engineering majors who were single and from the

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A: Actually, given question regarding query.

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Q: The foreign key in the table adult is called a foreign key.

A: Referential Foreign Key

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.