QUESTION 33 Consider this instance of Sailors Sid name rating age 18 jones 3 20 41 jonah 6 56
22 ahab 7 44 63 moby null 15 Consider this query: Find the names of sailors with a higher rating
than all sailors with age < 21. The following two queries attempt to obtain the answer to this
question. Do they both compute the result? SELECT S.name FROM Sailors S WHERE NOT
EXISTS (SELECT * FROM Sailors S2 WHERE S2.age < 21 AND S.rating <=S2.rating);
SELECT S.name FROM Sailors S WHERE S.rating > ANY (SELECT S2.rating FROM Sailors
S2 WHERE S2.age < 21);.
ICT role in 21st century education and it's challenges.
QUESTION 33 Consider this instance of Sailors Sid name rating age 18.pdf
1. QUESTION 33 Consider this instance of Sailors Sid name rating age 18 jones 3 20 41 jonah 6 56
22 ahab 7 44 63 moby null 15 Consider this query: Find the names of sailors with a higher rating
than all sailors with age < 21. The following two queries attempt to obtain the answer to this
question. Do they both compute the result? SELECT S.name FROM Sailors S WHERE NOT
EXISTS (SELECT * FROM Sailors S2 WHERE S2.age < 21 AND S.rating <=S2.rating);
SELECT S.name FROM Sailors S WHERE S.rating > ANY (SELECT S2.rating FROM Sailors
S2 WHERE S2.age < 21);
![Question 4 [15 marks] 4.1 The increased usage of technology makes it.pdf](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)