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Consider the relational schema given below, where eId of the relation dependent is a foreign key referring to empId of the relation employee. Assume that every employee has at least one associated dependent in the dependent relation.
employee (empId, empName, empAge)
dependent(depId, eId, depName, depAge)
Consider the following relational algebra query:
The above query evaluates to the set of empIds of employees whose age is greater than that of
  • a)
    some dependent.
  • b)
    all dependents.
  • c)
    some of his/her dependents
  • d)
    all of his/her dependents
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Consider the relational schema given below, where eId of the relation ...
The below subquery after the subtraction sign produces id's of those employees who have at least one dependent with age greater than or equal the employee's age.
When the result of above subquery is subtracted from all employees, we get the employees whose age is greater than all dependents.
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Most Upvoted Answer
Consider the relational schema given below, where eId of the relation ...
The below subquery after the subtraction sign produces id's of those employees who have at least one dependent with age greater than or equal the employee's age.
When the result of above subquery is subtracted from all employees, we get the employees whose age is greater than all dependents.
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Consider the relational schema given below, where eId of the relation dependent is a foreign key referring to empId of the relation employee. Assume that every employee has at least one associated dependent in the dependent relation.employee (empId, empName, empAge)dependent(depId, eId, depName, depAge)Consider the following relational algebra query:The above query evaluates to the set of empIds of employees whose age is greater than that ofa)some dependent.b)all dependents.c)some of his/her dependentsd)all of his/her dependentsCorrect answer is option 'D'. Can you explain this answer?
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Consider the relational schema given below, where eId of the relation dependent is a foreign key referring to empId of the relation employee. Assume that every employee has at least one associated dependent in the dependent relation.employee (empId, empName, empAge)dependent(depId, eId, depName, depAge)Consider the following relational algebra query:The above query evaluates to the set of empIds of employees whose age is greater than that ofa)some dependent.b)all dependents.c)some of his/her dependentsd)all of his/her dependentsCorrect answer is option 'D'. 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 relational schema given below, where eId of the relation dependent is a foreign key referring to empId of the relation employee. Assume that every employee has at least one associated dependent in the dependent relation.employee (empId, empName, empAge)dependent(depId, eId, depName, depAge)Consider the following relational algebra query:The above query evaluates to the set of empIds of employees whose age is greater than that ofa)some dependent.b)all dependents.c)some of his/her dependentsd)all of his/her dependentsCorrect answer is option 'D'. 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 relational schema given below, where eId of the relation dependent is a foreign key referring to empId of the relation employee. Assume that every employee has at least one associated dependent in the dependent relation.employee (empId, empName, empAge)dependent(depId, eId, depName, depAge)Consider the following relational algebra query:The above query evaluates to the set of empIds of employees whose age is greater than that ofa)some dependent.b)all dependents.c)some of his/her dependentsd)all of his/her dependentsCorrect answer is option 'D'. Can you explain this answer?.
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