The biggest challenge in creating a data warehouse is:
A) determining the data to include.
B) discarding old data.
C) cleaning the data to be standardized.
D) partitioning the data warehouse into subordinate data marts.

Question

Quizplus · Accepted Answer

Cleaning and standardizing the data is a critical step in creating a data warehouse. This involves removing duplicates, correcting errors, ensuring consistency and accuracy, and making sure the data is in a standardized format. Without this step, the data in the data warehouse may be inaccurate and unreliable. While determining the data to include and partitioning the data warehouse into subordinates are important tasks, they are not as challenging as cleaning and standardizing the data. Discarding old data is also important, but this can be automated and is not as challenging as the data cleaning process.

The Biggest Challenge in Creating a Data Warehouse Is