What is data warehousing and why is it important?
Data warehousing is the process of collecting and managing data from various sources to provide meaningful business insights. It's important because it enables organizations to analyze large volumes of data efficiently, leading to better decision-making.
How does data warehousing differ from traditional databases?
Unlike traditional databases that are optimized for transaction processing, data warehouses are designed for query and analysis, allowing for complex queries across large datasets.
What are some common data warehousing architectures?
Common architectures include the Kimball approach (dimensional modeling) and the Inmon approach (normalized data model), each serving different business needs.
Can you explain ETL in the context of data warehousing?
ETL stands for Extract, Transform, Load. It's a process used to pull data from various sources, transform it into a suitable format, and load it into the data warehouse for analysis.
What tools are commonly used for data warehousing?
Popular tools include Amazon Redshift, Google BigQuery, Snowflake, and Microsoft Azure Synapse, each offering unique features for data management.
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