What normal form is star schema?

It is called a star schema because the diagram resembles a star, with points radiating from a center. The center of the star consists of fact table and the points of the star are the dimension tables. Usually the fact tables in a star schema are in third normal form(3NF) whereas dimensional tables are de-normalized.Click to see full answer. Hereof, what is a star schema model?In data warehousing and business intelligence (BI), a star schema is the simplest form of a dimensional model, in which data is organized into facts and dimensions. A star schema is diagramed by surrounding each fact with its associated dimensions. The resulting diagram resembles a star.Also Know, what are the major components of a star schema? The star schema was developed because existing relational modeling techniques, ER, and normalization did not yield a database structure that served advanced data analysis requirements well. The basic star schema has four components: facts, dimensions, attributes, and attribute hierarchies. Similarly, it is asked, how do you make a star schema? Steps in designing Star Schema: Identify a business process for analysis(like sales). Identify measures or facts (sales dollar). Identify dimensions for facts(product dimension, location dimension, time dimension, organization dimension). List the columns that describe each dimension. Is star schema normalized or denormalized?In a star schema, the dimensions are typically denormalized. Say you have an employee dimension, and the employees belong to a department. In a normalized data model, you will have separate employee and department tables and a foreign key relationship that links them.