352 views
0 votes
0 votes

I am just confused between option 1 and 4 , according to me they both are same since a relational Model doesn't support duplicate tuples , so in every case natural join and intersect will give same result of tuples , but in answer given it states that both operations are different ?

Please log in or register to answer this question.

Related questions

6 votes
6 votes
1 answer
1
3 votes
3 votes
3 answers
2
ari asked Aug 17, 2015
4,288 views
Which of the following are not equivalent to expression $(a + b + c)^*$?(A) $(a^* + b^* + c^*)^*$(B) $\Bigl ( (ab)^* + c^* \Bigr )^*$(C) $(a^* b^* c^*)^*$(D) $(a^*b^* + c...
2 votes
2 votes
1 answer
3
techbrk3 asked Nov 9, 2017
1,458 views
(TS: time stamp)If TS (T) < Read-TS (Q), then write is rejected and T is rolled backIf TS (T) < write-TS (Q), then write is rejected and T is rolled backBoth (A) and (B)N...
1 votes
1 votes
2 answers
4