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Relational Algebra Starter Quiz-1
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What type of join is needed when you wish to include rows that do not have matching values?
Which commands are used to control access over objects in relational database?
Which of the following is a fundamental operation in relational algebra?
For a database relation R (a, b, c, d) where the domains of a, b, c and d only include atomic values, only the following functional dependency and those that can be inferred from them hold:
a → c , b→ d
The relation is in?
What will be the cardinality of the cross product of R X S?
Which of the following key is used for implementing referential integrity?
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May 13GATE & PSU CS