Data in Databases Are Constantly in Use or Undergoing Changes

question 60

Multiple Choice

Data in databases are constantly in use or undergoing changes.As a result,it is impossible to use them for complex decision making or problem solving tasks.Which of the following is an appropriate solution to this problem?

• A)Set aside specific time windows each day for halting data changes or new inputs to the database so that decision making or problem solving applications can use the data.
• B)Conduct decision making or problem solving tasks prior to transferring data to the database.
• C)Use the database data anyway since the results are better than not conducting any decision or problem solving analysis at all.
• D)Extract,transform and load database data into a data warehouse where it can be formatted for further analysis.

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