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What action does ⋈ operator perform in relational algebra
  • a)
    Output specified attributes from all rows of the input relation and remove duplicate tuples from the output
  • b)
    Outputs pairs of rows from the two input relations that have the same value on all attributes that have the same name
  • c)
    Output all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes)
  • d)
    Return rows of the input relation that satisfy the predicate
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What action does operator perform in relational algebraa)Output speci...
⋈ Outputs specified attributes from all rows of the input relation. Remove duplicate tuples from the output. The operation is called the join operation.
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What action does operator perform in relational algebraa)Output specified attributes from all rows of the input relation and remove duplicate tuples from the outputb)Outputs pairs of rows from the two input relations that have the same value on all attributes that have the same namec)Output all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes)d)Return rows of the input relation that satisfy the predicateCorrect answer is option 'A'. Can you explain this answer?
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What action does operator perform in relational algebraa)Output specified attributes from all rows of the input relation and remove duplicate tuples from the outputb)Outputs pairs of rows from the two input relations that have the same value on all attributes that have the same namec)Output all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes)d)Return rows of the input relation that satisfy the predicateCorrect answer is option 'A'. 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 What action does operator perform in relational algebraa)Output specified attributes from all rows of the input relation and remove duplicate tuples from the outputb)Outputs pairs of rows from the two input relations that have the same value on all attributes that have the same namec)Output all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes)d)Return rows of the input relation that satisfy the predicateCorrect answer is option 'A'. 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 What action does operator perform in relational algebraa)Output specified attributes from all rows of the input relation and remove duplicate tuples from the outputb)Outputs pairs of rows from the two input relations that have the same value on all attributes that have the same namec)Output all pairs of rows from the two input relations (regardless of whether or not they have the same values on common attributes)d)Return rows of the input relation that satisfy the predicateCorrect answer is option 'A'. Can you explain this answer?.
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