A Data Warehouse (DW) is a centralized repository that stores structured and historical data from various sources. It helps in consolidating data for reporting and analysis, ensuring consistency and accuracy.
Key Features of DW:
- ETL (Extract, Transform, Load): Data integration process to ensure clean and accurate data.
- Scalability: Ability to handle large volumes of data efficiently.
- Data Integration: Aggregating data from multiple sources for unified reporting.
- Security and Compliance: Ensuring data governance and regulatory compliance.