Data Warehousing Questions
A data warehouse schema snowflake join is a type of join operation used in data warehousing. It involves connecting multiple dimension tables to a fact table in a snowflake-like structure. In this schema, the dimension tables are normalized, meaning they are divided into multiple smaller tables, resulting in a more complex and normalized structure. This allows for better data organization and reduces data redundancy. However, it can also lead to increased query complexity and performance issues.