Snowflake

Snowflake Schema #

Introduction #

The Snowflake Schema is a variant of the star schema where dimension tables are normalized, splitting them into additional tables. This schema reduces data redundancy and improves data integrity.

Characteristics: #

  • Normalization: Dimension tables are normalized into multiple related tables, reducing redundancy and potentially saving storage space.
  • Complexity: More complex joins are needed to execute queries, which can slow down query performance compared to the star schema.
  • Maintenance: Easier to maintain due to normalization, as changes in data structure are localized to specific areas of the schema.

Snowflake Schema

Learning Resources #

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Miscellaneous #