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Author Question: Which of the following is true for duplicate data in the database? A) Errors occur when records ... (Read 83 times)

gbarreiro

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Which of the following is true for duplicate data in the database?
 
  A) Errors occur when records are updated.
  B) Errors occur when records are inserted.
  C) Errors occur when records are deleted.
  D) All of the above.

Question 2

Judy is analyzing weekly sales transactions at a supermarket. She finds that the support value for bed sheets and pillow covers is 0.9. Given this information, which of the following statements is true?
 
  A) The sale of bedsheets and pillow covers is lower than other items.
  B) Customers who buy bedsheets usually also buy pillow covers.
  C) The supermarket carries a large stock of bedsheets and pillow covers.
  D) Customers who buy bedsheets rarely also buy pillow covers.


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parshano

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gbarreiro

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Reply 2 on: Jul 7, 2018
Gracias!


AmberC1996

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Reply 3 on: Yesterday
Wow, this really help

 

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