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Exam C2090-616 topic 1 question 46 discussion

Actual exam question from IBM's C2090-616
Question #: 46
Topic #: 1
[All C2090-616 Questions]

Which of the following is TRUE about DB2 OLAP functions?

  • A. They return scalar values and not array values
  • B. There are no DB2 monitor elements specific to OLAP functions
  • C. OLAP functions are not supported in a common table expression (CTE)
  • D. OLAP aggregation functions are not supported with column organized tables C
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Suggested Answer: Explanation 🗳️
by db2tester at Oct. 9, 2019, 12:49 p.m.

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Gisah
3 years, 8 months ago
C is wrong: Example 5: A common table expression could also have been used. https://www.ibm.com/docs/en/db2/11.1?topic=expressions-olap-specification
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db2tester
5 years, 7 months ago
The correct answer : A On-Line Analytical Processing (OLAP) functions provide the ability to return ranking, row numbering and existing aggregate function information as a scalar value in a query result. Reference : https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/com.ibm.db2.luw.sql.ref.doc/doc/r0023461.html
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