| Q. |
What action does ⋈ operator perform in relational algebra |
| A. | Output specified attributes from all rows of the input relation and remove duplicate tuples from the output |
| B. | Outputs 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. | Return rows of the input relation that satisfy the predicate |
| Answer» A. Output specified attributes from all rows of the input relation and remove duplicate tuples from the output | |
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