Which of the following are components of a data warehouse?
A)Data extract,transform,and load (ETL)preparation programs
B)Data warehouse data
C)Data warehouse metadata
D)B and C
E)A,B,and C

Question

Quizplus · Accepted Answer

All three components - Data extract, transform, and load (ETL) preparation programs, data warehouse data, and data warehouse metadata - are integral parts of a data warehouse. The ETL software is used to extract data from multiple sources (such as operational databases), transform it into a consistent format, and load it into the data warehouse. Data warehouse data refers to the actual data stored in the warehouse, which is organized differently from operational databases to support analytical querying. Data warehouse metadata, on the other hand, provides information about the data warehouse content, structure, and usage to help analysts and developers understand and utilize the data.

Which of the Following Are Components of a Data Warehouse