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Please answer the true false questions 20) Analytical databases collect and present operational information in support...

Please answer the true false questions

20) Analytical databases collect and present operational information in support of daily operational procedures and processes.

21) Analytical information is based on operational information.

22) Each instance of a weak entity must participate in one instance of the identifying relationship.

23) A weak entity that has a 1:1 identifying relationship with its owner, must have a partial key.

24) Each instance of a weak entity must participate in one instance of the identifying relationship.

25) A unary relationship cannot have mandatory participation on both sides.

26) Components of a unique composite attribute are not unique.

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Answer #1

20. The answer is: False

  • It collects and presents analytical information but not operational information.

21. The answer is: True

22. The answer is: True

23. The answer is: False

24. The answer is: True

25. The answer is: False

26. The answer is: True

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