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Chapter 19: Database Systems Exam Tests
Database Systems MCQs - Chapter 19
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MCQ 11: The query languages are terse and formal, but they illustrate the fundamental techniques for
MCQ 12: Operation that outputs pairs of rows from the two input relations that have the same value on all attributes that have the same name, is known as
MCQ 13: A set of operations in a query language that take one or two relations as input and produce a new relation as their result, is known to be
MCQ 14: A pictorial depiction of the schema of a database that shows the relations in the database, is known to be
MCQ 15: Relational operations can be applied to the results of queries as well as to the
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