Question
A star schema in a data warehouse consists of:
More Data Warehousing Questions
- Which SQL clause is used to filter records after aggregation?
- Which type of OLAP allows analysis of multidimensional data stored in relational databases?
- Which SQL query will correctly calculate the average salary of employees in each department and group them by department in a table named 'employees'?
- Data warehouse metadata primarily describes:
- Which SQL keyword is used to combine results from two queries and remove duplicates?
- ETL stands for:
- Which operation in OLAP allows selecting a single dimension from a cube?
- In the context of a relational database, which of the following is NOT a characteristic of a candidate key?
- Which type of OLAP allows operations on pre-aggregated data cubes?
- Which of the following is NOT a characteristic of OLAP systems?
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