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Mr. Dubey • 100.69K Points
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Q. What does the “x” operator do in relational algebra?

  • (A) Output specified attributes from all rows of the input relation. Remove duplicate tuples from the output
  • (B) Output pairs of rows from the two input relations that have the same value on all attributes that have the same name
  • (C) Output all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes)
  • (D) Returns the rows of the input relation that satisfy the predicate
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