Question
Which schema in data warehousing uses a central fact table connected to dimension tables?
More Data Warehousing Questions
- Data cleansing is primarily concerned with:
- In a data warehouse, which type of table stores quantitative data for analysis?
- Which SQL query will correctly calculate the average salary of employees in each department and group them by department in a table named 'employees'?
- Which clause is used to sort the results in SQL?
- In a data warehouse, a fact table typically contains:
- In a star schema, what is the main advantage of using surrogate keys in fact tables?
- Which of the following is NOT a common OLAP operation?
- Which process loads data from multiple sources into a data warehouse?
- What is meant by 'cardinality' in data modeling?
- What does "drill-down" operation in OLAP do?
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