Question
In a star schema, what is the main advantage of using surrogate keys in fact tables?
More Data Warehousing Questions
- Which type of slowly changing dimension (SCD) preserves full history by adding a new row for each change and using effective date ranges?
- Which clause is used to sort the results in SQL?
- Which type of OLAP allows analysis of multidimensional data stored in relational databases?
- In a data warehouse, which type of table stores quantitative data for analysis?
- Which process ensures data in a data warehouse is consistent and clean?
- Which of the following best describes a fact constellation schema in a data warehouse?
- Which process loads data from multiple sources into a data warehouse?
- ETL stands for:
- Which of the following commands is part of the Transaction Control Language (TCL) in SQL?
- Which schema uses multiple fact tables sharing dimension tables?
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