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What is the use of incremental aggregation? Explain me in brief with an example?
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what are confirmed dimension? We alwys give date as a conformed dimension but if it has different format for different contries say YYMMDD for italy and MM-DD-YYYY for france.Then are they not confirmed.
4 Answers IBM, MAHINDRA, Tech Mahindra,
What is the difference between view materialized view and view?
How to create different types of templates?
Explain how to generate iqd file from framework manager?
what role views play in dimensional modeling?
What is scd1 , scd2 , scd3?
Explain difference between snow flake and star schema. What are situations where snow flake schema is better than star schema to use and when the opposite is true?
2.What is staging area ?
4 Answers HCL, IBM, iFlex, TCS,
which automation tool is used in data warehouse testing?
How to create context?
What are the differences between star and snowflake schema?
How many types of facts and what are they?
Teradata 
