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Exam 1z0-071 topic 1 question 258 discussion

Actual exam question from Oracle's 1z0-071
Question #: 258
Topic #: 1
[All 1z0-071 Questions]

Examine the description of the EMPLOYEES table:



Which query is valid?

  • A. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
  • B. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
  • C. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
  • D. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
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Suggested Answer: B 🗳️
by JayaprasanthGurunathan at Jan. 5, 2025, 3:55 a.m.

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JayaprasanthGurunathan
1 week, 3 days ago
Selected Answer: B
Aggregate Functions Rule: You cannot nest aggregate functions like MAX(AVG()) or AVG(MAX()).
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