What is TRUE about Right Outer Join?*It contains all tuples that have the same common attribute names in A and BTuples in B do not match tuples in A in the left outer joinBoth A and BNone of the above
Question
What is TRUE about Right Outer Join?*It contains all tuples that have the same common attribute names in A and BTuples in B do not match tuples in A in the left outer joinBoth A and BNone of the above
Solution
The correct answer is "It contains all tuples that have the same common attribute names in A and B".
A Right Outer Join in SQL is a type of join that returns all the rows from the right table (table B) and the matched rows from the left table (table A). If there is no match, the result is NULL on the left side. Therefore, it does not necessarily mean that tuples in B do not match tuples in A in the left outer join.
So, the statement "Tuples in B do not match tuples in A in the left outer join" is not always true about Right Outer Join.
The option "Both A and B" is also incorrect because not both statements are true.
And finally, the option "None of the above" is incorrect because the first statement is true.
Similar Questions
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Which type of join returns all rows in the left table regardless of whether there are matches in the right table?Select one:a.Hash joinb.Full outer joinc.Left outer joind.Right outer join
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