Question
A snowflake schema differs from a star schema mainly because:
More Data Warehousing Questions
- Which process loads data from multiple sources into a data warehouse?
- Which OLAP operation rotates the data axes to provide an alternative presentation?
- Which of the following best describes the primary function of a database index?
- Fact constellation schema is best described as:
- ETL stands for:
- ETL stands for:
- Which type of OLAP allows analysis of multidimensional data stored in relational databases?
- Which process ensures data in a data warehouse is consistent and clean?
- In a star schema, what is the main advantage of using surrogate keys in fact tables?
- Which SQL query will correctly calculate the average salary of employees in each department and group them by department in a table named 'employees'?
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