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Author Question: All of the following are tasks of data cleansing EXCEPT: A) decoding data to make them ... (Read 53 times)

asmith134

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All of the following are tasks of data cleansing EXCEPT:
 
  A) decoding data to make them understandable for data warehousing applications.
  B) adding time stamps to distinguish values for the same attribute over time.
  C) generating primary keys for each row of a table.
  D) creating foreign keys.

Question 2

A repository of information about a database that documents data elements of a database is called a:
 
  A) schema.
  B) subschema.
  C) view.
  D) data dictionary.


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thall411

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