MCQOPTIONS
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MCQOPTIONS
| 1. |
What does the x operator do in relational algebra? |
| A. | tOutput specified attributes from all rows of the input relation. Remove duplicate tuples from the output |
| B. | tOutput pairs of rows from the two input relations that have the same value on all attributes that have the same name |
| C. | tOutput all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes) |
| D. | tReturns the rows of the input relation that satisfy the predicate |
| Answer» D. tReturns the rows of the input relation that satisfy the predicate | |