Question
Surrogate keys are used in data warehouses because:
More Data Warehousing Questions
- Which SQL query will correctly calculate the average salary of employees in each department and group them by department in a table named 'employees'?
- Fact constellation schema is best described as:
- A snowflake schema differs from a star schema mainly because:
- ETL stands for:
- What is a data mart?
- Data warehouse metadata primarily describes:
- Metadata in data warehousing refers to:
- Which type of data warehouse is focused on specific business lines or departments?
- Which of the following best describes the primary function of a database index?
- Which SQL function returns the total number of rows in a table?
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