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Exam 1z0-082 topic 1 question 129 discussion

Actual exam question from Oracle's 1z0-082
Question #: 129
Topic #: 1
[All 1z0-082 Questions]

Examine the description of the SALES1 table:



SALES2 is a table with the same description as SALES1.

Some sales data is contained erroneously in both tables.

You must display rows from SALES1 and SALES2 and wish to see the duplicates too.

Which set operator generates the required output?

  • A. UNION ALL
  • B. SUBTRACT
  • C. MINUS
  • D. UNION
  • E. INTERSECT
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Suggested Answer: A 🗳️
by nautil2 at May 22, 2023, 3:28 p.m.

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nautil2
2 weeks, 5 days ago
Selected Answer: A
The UNION ALL operator does not eliminate duplicate selected rows. https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/The-UNION-ALL-INTERSECT-MINUS-Operators.html#GUID-B64FE747-586E-4513-945F-80CB197125EE
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