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Consider the schema Sailors(sid, sname, rating, age) with the following data Sid Sname Rating age 22 Dustin 7 45 29 Borg 1 33 31 Pathy 8 55 32 Robert 8 25 58 Raghu 10 17 64 Herald 7 35 71 Vishnu 10 16 74 King 9 35 85 Archer 3 26 84 Bob 3 64 96 Flinch 3 17 For the query SELECT S.rating, AVG(S.age) AS avgage FROM Sailors S Where S.age >= 18 GROUP BY S.rating HAVING 1 < (SELECT COUNT(*) FROM Sailors S2 where S.rating = S2.rating) The number of rows returned is
What are the two reference fuels used for cetane rating?
The two reference fuels used for cetane rating are __________
Which of the following statement/s is/are relating to credit rating agencies?
1. The three largest credit rating agencies rate India's sovereign debt at the highest investment grade.
2. CRISIL is the largest credit rating agency in India but is not among the largest three in the world.
3. The three largest credit rating agencies in the world are Moody's, Standard and Poor's and Fitch.
Consider the following statements regarding conventional sources of energy.
1. The conventional sources of energy are the fossil fuels which took millions of years for the formation of fossil fuels; hence they are limited and non-renewable.
2. Fossils are remains of organisms that lived in the past and fossil fuels are plants that got buried under the Earth and became rock over years.
Which of the above statement(s) is/are correct?
The cetane (C₁₆H₃₄) which is a straight chain paraffin, is assigned a cetane number of
Find cetane number for the mixture of 40% n-cetane and 60% heptamethylnonane?
The cetane (C16H34) which is a straight chain paraffin, is assigned a cetane number of
Consider a table that describes the customers: Customers(custid, name, gender, rating) The rating value is an integer in the range 1 to 5 and only two values (male and female) are recorded for gender. Consider the query “how many male customers have a rating of 5”? The best indexing mechanism appropriate for the query is
The average rating of 100 observation is 50. If we remove a rating 50 and include rating 150, then what is the new average?