Data Warehousing Interview Questions and Answers
What is Data Warehousing? Data warehousing is the process of storing and managing data from varied sources to provide meaningful business insights. It involves data integration, cleaning, and transformation to support decision-making processes. What is Business Intelligence (BI)? Business Intelligence (BI) refers to technologies, applications, and practices for the collection, integration, analysis, and presentation of business information. It helps organizations make data-driven decisions. What is a Dimension Table? A dimension table is a table in a data warehouse that stores attributes or dimensions that describe the objects in a fact table. It provides context for measures in the fact table. What is Dimensional Modeling? Dimensional modeling is a design technique for organizing data in a data warehouse. It involves creating dimension tables and fact tables to provide a structure that is optimized for querying and analysis. What is a Fact Table? A fact table is a central table i...