1.

What does the following relational operation perform?

A. (E)
B. It returns the result of expression E with the previous attribute names
C. It returns the result of expression E renaming the attributes as A1, A2, …
D. It returns the result of the relation E but saves the old attributes
Answer» C. It returns the result of expression E renaming the attributes as A1, A2, ‚Äö√Ñ√∂‚àö√묨‚àÇ


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