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Database Processing for BIS
See What Others Are Saying!
Question
We have done an RFM analysis on our customer data. Mary Jones has a score of "1 1 5". This series means that Mary ________ .
Options
A. Has ordered recently, orders frequently, and places a large order when she orders.
B. Hasn't ordered recently, orders infrequently, but places a large order when she orders.
C. Has ordered recently, orders frequently, but doesn't place a large order when she orders
D. Hasn't ordered recently, orders infrequently, and doesn't place a large order when she orders.
Correct Answer
Has ordered recently, orders frequently, but doesn't place a large order when she orders
More questions
1. 'dbo' stands for database object.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
2. SQL is a data sublanguage.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
3. Which one of the following symbols is not used in an ERD?
Options
A. Rectangle
B. Oval
C. Diamond
D. Circle
Show Answer
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Discuss
Correct Answer: Circle
4. Data in operational systems are typically fragmented and inconsistent.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
5. VBScript is similar to JavaScript.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
6. Successful data warehousing requires that a formal program in total quality management (TQM) be implemented.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
7. The HAVING clause acts like a WHERE clause, but it identifies groups that meet a criterion, rather than rows.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
8. The source of the data is sometimes called the system of record.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
9. All primary keys are required.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
10. Entities use identifiers while tables use keys.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
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