Data warehouse routinely uses _____ structures in its complex, multilevel, multisource data environment.
A) 1NF
B) 2NF
C) 3NF
D) 4NF

Question

Quizplus · Accepted Answer

Data warehouse, being a complex, multilevel, multisource data environment, requires a robust data structure to ensure data quality, consistency, and accuracy. 2NF and 3NF structures are commonly used in data warehouses to eliminate data redundancies and dependencies, thereby improving data integrity and efficiency. While 1NF focuses on eliminating repeatable groups, 2NF and 3NF take it further by removing partial dependencies and transitive dependencies, respectively, making them the best choices for data warehouse structures. 4NF is rarely used in data warehouses as it makes the data models too complex and can lead to performance issues.

Data Warehouse Routinely Uses _____ Structures in Its Complex, Multilevel