What is a data warehousing?
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Explain what are slowly changing dimensions?
How to add a number to a macro variable?
Why do we use DSS database for OLAP tools?
What is the difference between snowflake and star schema?
what is parallel query?
If I have table T1 and table T2 T1 has 250 cols and 10,000 rows T2 has 2 billion rows and 10 cols Which one would be Fact table and which one would be Dimension table and why ?
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What is the difference between ods and oltp?
What are the steps to build the datawarehouse?
Explain what are the various transformation available?
What is the difference between er modeling and dimensional modeling?
What are the difference between snow flake and star schema? What are situations where snow flake schema is better than star schema to use and when the oppositeis true?
Are facts same as metrics and dimensions same as measures? If not , please tell the difference?
Teradata 
