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The data in a data warehouse have which of the following characteristics?

a. They are coded in different formats.
b. They are typically retained for a defined, but limited, period of time.
c. They are organized in a hierarchical structure.
d. They are organized by subject.
e. They are updated in real-time.

Respuesta :

Cetacea

Answer: Option(d) is correct

Explanation:

Data warehouse is the storage that holds collected information and data for making acknowledged decision through analyzing the data. Data present in data warehouse is as per subject which contains history and sources of data for understanding and perceiving it.

  • Other options are incorrect because data is not coded in various forms,retrieved for certain period of time, real-time update and arrangement in hierarchical form.
  • Thus, the correct option is option(d).

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