Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks andlt;= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks andlt; B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer?

EduRev

All Courses

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

GATE Exam > GATE Questions > Consider the relationStudents(Rollno, Name, M...

Join the Discussion on the App

Consider the relation

Students(Rollno, Name, Marks)

Where rollno is the primary key.

Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.

Now consider 2 queries.

Query1: SELECT A .Name, count (B .Name)

From Students A, Students B

Where A.Marks <= B.Marks group by A .Name

Query2: SELECT A .Name, 1+count (B .Name)

From Students A, Students B

Where A.Marks < B .Marks group by A .Name

a)
Query 1 and Query 2 are correct implementation of the given specification
b)
Query 1 and Query 2 are not correct implementation of the given specification
c)
Query 1 is the correct implementation of the specification but not Query 2
d)
Query 2 is the correct implementation of the specification but not Query 1

Correct answer is option 'B'. Can you explain this answer?

FREE This question is part of

Practice Test: Computer Science Engineering (CSE) - 2

Attempt Test

Attempt this Test

Verified Answer

Consider the relationStudents(Rollno, Name, Marks)Where rollno is the ...

Both the queries generate the same result but none of them sort the students according to the decreasing marks.

View all questions of this test

View all answers Start learning for free

< Previous Question Next Question >

Explore Courses for GATE exam

Similar GATE Doubts

Given that the scope of the construction work is well-defined with all its drawings, specifications, quantities and estimates, which one of the following types of contract would be most preferred?

View answer

A liquid mixture of ethanol and water is flowing as inlet stream P into a stream splitter. It is splitinto two streams, Q and R, as shown in the figure below.The flow rate of P, containing 30 mass% of ethanol, is 100kg/h. What is the least number ofadditional specification(s) required to determine the mass flow rates and compositions (mass %)of the two exit streams?

View answer

Consider a TCP connection between a client and a server with the following specifications: the round trip time is 6 ns, the size of the receiver advertised window is 50 KB, slow start threshold at the client is 32 KB, and the maximum segment size is 2 KB. The connection is established at time t = 0. Assume that there are no timeouts and errors during transmission. Then the size of the congestion window (in KB) at time t + 60 ms after all acknowledgments are processed is ________. Correct answer is '44'. Can you explain this answer?

View answer

In a rectangular rcc beam section additional shear developed due to torsion may be reduced due by 1.by increaseing the width of the section 2.A.by increaseing the depth of the section 3.by decreasing depth to width ratio 4.by increasing depth of beam and by reducing width of the beam section ?

View answer

The figure below shows a symbolic representation of the surface texture in a perpendicular lay orientation with indicative values (I through VI) marking the various specifications whose definitions are listed below.P: Maximum Waviness Height (mm);Q: Maximum Roughness Height (mm);R: Minimum Roughness Height (mm);S: Maximum Waviness Width (mm);T: Maximum Roughness Width (mm);U: Roughness Width (mm);The correct match between the specifications and the symbols (I to VI) is

View answer

Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer?

Share with a Friend

Answer this doubt

Question Description
Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer?.

Solutions for Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE. Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.

Here you can find the meaning of Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Consider the relationStudents(Rollno, Name, Marks)Where rollno is the primary key.Now we would like to rank the students according to the decreasing marks. The student with the highest marks gets rank 1. Ties are not broke but ranks are skipped.Now consider 2 queries.Query1: SELECT A .Name, count (B .Name)From Students A, Students BWhere A.Marks <= B.Marks group by A .NameQuery2: SELECT A .Name, 1+count (B .Name)From Students A, Students BWhere A.Marks < B .Marks group by A .Namea)Query 1 and Query 2 are correct implementation of the given specificationb)Query 1 and Query 2 are not correct implementation of the given specificationc)Query 1 is the correct implementation of the specification but not Query 2d)Query 2 is the correct implementation of the specification but not Query 1Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice GATE tests.

Explore Courses for GATE exam