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Consider the following tuple relational calculus:
What does the given expression perform?
  • a)
    Finds the names of departments in the Taylor building.
  • b)
    Finds the names of all instructors whose department is in the Taylor building.
  • c)
    Finds the names of instructors who do not work in the Taylor building.
     
  • d)
    Finds the names of all instructors whose department name is Taylor
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following tuple relational calculus:What does the given e...
The correct answer is option 2.
There are two 'there exists' clauses in the given tuple relational calculus which are connected by and (ᴧ). The tuple variable u is restricted to departments that are located in the Taylor building, while tuple variable s is restricted to instructors whose dept name matches that of tuple variable u.
Therefore, the given expression finds the names of all instructors whose department is in the Taylor building.
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Consider the following tuple relational calculus:What does the given expression perform?a)Finds the names of departments in the Taylor building.b)Finds the names of all instructors whose department is in the Taylor building.c)Finds the names of instructors who do not work in the Taylor building.d)Finds the names of all instructors whose department name is TaylorCorrect answer is option 'B'. Can you explain this answer?
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Consider the following tuple relational calculus:What does the given expression perform?a)Finds the names of departments in the Taylor building.b)Finds the names of all instructors whose department is in the Taylor building.c)Finds the names of instructors who do not work in the Taylor building.d)Finds the names of all instructors whose department name is TaylorCorrect answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 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 Consider the following tuple relational calculus:What does the given expression perform?a)Finds the names of departments in the Taylor building.b)Finds the names of all instructors whose department is in the Taylor building.c)Finds the names of instructors who do not work in the Taylor building.d)Finds the names of all instructors whose department name is TaylorCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following tuple relational calculus:What does the given expression perform?a)Finds the names of departments in the Taylor building.b)Finds the names of all instructors whose department is in the Taylor building.c)Finds the names of instructors who do not work in the Taylor building.d)Finds the names of all instructors whose department name is TaylorCorrect answer is option 'B'. Can you explain this answer?.
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