Consider two database relations T1 and T2 having 5 and 2 tuples respectively. What is the maximum number of tuples that could appear in the natural join of R and S?a.2b.10c.5d.7
Question
Consider two database relations T1 and T2 having 5 and 2 tuples respectively. What is the maximum number of tuples that could appear in the natural join of R and S?a.2b.10c.5d.7
Solution
The maximum number of tuples that could appear in the natural join of T1 and T2 is determined by the smaller number of tuples in either relation. However, if there are common attributes (columns) with matching values, the number of tuples in the result could be more.
In this case, T1 has 5 tuples and T2 has 2 tuples. If every tuple in T2 matches with every tuple in T1 on their common attributes, then the maximum number of tuples in the natural join of T1 and T2 would be 5*2 = 10 tuples.
So, the correct answer is b.10.
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