Explain the main differences between star and snowflake schema?
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Explain is olap databases are called decision support system true/false?
In document how to create metrics?
Explain where do we use semi and non additive facts?
What is query panel?
How do you create surrogate key using ab initio?
what is the difference between DSS and ODS ?
How to answer the question how many fakt table in your datawarehouse and what size it have?
How to improve session performance in aggregator transformation?
How to handle multi value dimensions?
Explain what is the advantages data mining over traditional approaches?
What is the purpose of cluster analysis in data warehousing?
how do you use commit frequencies? how does it affect loading performance?