Let R and S be two database relations. If cardinalities of R and S are 4 and 10, respectively, then what will be the number of tuples in R andtimes; S, where andtimes; represents cross product operation?a)40b)4c)10d)14Correct answer is option 'A'. Can you explain this answer? - EduRev Computer Science Engineering (CSE) Question

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Let R and S be two database relations. If cardinalities of R and S are 4 and 10, respectively, then what will be the number of tuples in R × S, where '×' represents cross product operation?

a)
40
b)
4
c)
10
d)
14

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

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Let R and S be two database relations. If cardinalities of R and S are...

Concept:
Cross product:
Cross product is a way of combining two relation instances. The resulting relation has a schema that contains each of the attributes in both relations being combined.

A cross product is represented by the following notation:
Employee x Parking
Example:

Employee x Parking:

Cross product grows quickly, there are N * M rows in the resulting relation (N = number in Employees, M = number in Parking), and the resulting relation has X + Y columns (attributes) in it (X = number of attributes in Employees, Y = number of attributes in Parking).
The given data,
R =4 rows
S=10 rows,
R x Y = 40 rows
Hence the correct answer is 40 rows

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Let R and S be two database relations. If cardinalities of R and S are 4 and 10, respectively, then what will be the number of tuples in R × S, where × represents cross product operation?a)40b)4c)10d)14Correct answer is option 'A'. Can you explain this answer?

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Let R and S be two database relations. If cardinalities of R and S are 4 and 10, respectively, then what will be the number of tuples in R × S, where × represents cross product operation?a)40b)4c)10d)14Correct answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Let R and S be two database relations. If cardinalities of R and S are 4 and 10, respectively, then what will be the number of tuples in R × S, where × represents cross product operation?a)40b)4c)10d)14Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Let R and S be two database relations. If cardinalities of R and S are 4 and 10, respectively, then what will be the number of tuples in R × S, where × represents cross product operation?a)40b)4c)10d)14Correct answer is option 'A'. Can you explain this answer?.

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