Stjerneskjemastrukturering
Stjerneskjemastrukturering, also known as star schema, is a type of database schema that is commonly used in data warehousing and business intelligence applications. It is designed to simplify the structure of the data and improve query performance. The star schema consists of a central fact table that is surrounded by dimension tables. The fact table contains quantitative data, such as sales figures or inventory levels, while the dimension tables contain descriptive attributes, such as time, location, or product information.
The star schema is called a "star" because of its visual representation, with the fact table in
One of the key advantages of the star schema is its simplicity. The structure is easy to
However, the star schema also has some limitations. One of the main drawbacks is its lack of
In summary, stjerneskjemastrukturering, or star schema, is a widely used database schema that is designed to