Which of the following is NOT a valid characteristic of a data warehouse?
2019
Which of the following is NOT a valid characteristic of a data warehouse?
- A.
Volatile
- B.
Time-variant
- C.
Subject-oriented
- D.
Integrated
Attempted by 39 students.
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Correct answer: A
Answer: Volatile (परिवर्तनीय) is NOT a valid characteristic of a data warehouse. Reason: A data warehouse is non-volatile — data loaded into the warehouse (usually via ETL) is not frequently changed or deleted; the system is optimized for read-oriented analytical queries and historical analysis. Subject-oriented: Data is organized around key business subjects (for example, customers, products, sales) to support analysis.