Data Warehousing Questions
A snowflake schema is a type of data modeling technique used in data warehousing. It is a variation of the star schema, where the dimension tables are further normalized into multiple related tables. In a snowflake schema, the dimension tables are structured in a hierarchical manner, with each level of the hierarchy represented by a separate table. This normalization helps to reduce data redundancy and improve data integrity. However, it also increases the complexity of queries and may impact query performance.