In context with relational Algebra. Which of the following are unary operatiors.
1.Select
2. Project
3. Union
4. Product
| A. | 1 and 3 only |
| B. | 2 and 4 only |
| C. | 1 and 2 only |
| D. | All are binary |
Answer : C Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
