Introduction
A database schema defines how data is organized within a relational database; this is inclusive of logical constraints such as, table names, fields, data types.
Types of schemas:
1.Star schema
A star schema is a data modeling technique for data warehouses that features a central fact table surrounded by several denormalized dimension tables , resembling a star.
2.Snowflake schema
It is a multi-dimensional data model that is an extension of a star schema, where dimension tables are broken down into subdimensions.
Conclusion
In summary, star schemas offer simplicity and fast query performance, while snowflake schemas provide a normalized structure that saves space but adds complexity. The choice depends on your specific data needs.
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