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How can we do data cleaning?
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What are fundamental stages of data warehousing?
Explain what is full load & incremental or refresh load?
Difference between DSS & OLTP?
Where do we use semi and non additive facts?
How can we load the time dimension?
Hi Guys, I have been to L& T last week ..Please find the questions mentioned below 1)Slowly changing dimension types 2)DML statement 3)DDL statement 4)write a syntax to create database 5) differences between count(*) and count(column) 6) differences between union and union all 7) what is decode 8) what is NVL 9) Arrange the values in ascending order 10,5,20,15,null 10)Primary and surrogate key 11)what is group by clause does? 12)what is difference between truncate and delete 13)what is difference between OLAP and OLTP ? 14)Architecture of Datawarehouse 15)how do you test the data validation from source as (flat file and xml) to staging tables. 16)what is shedule and time bound the mentioned above question asked in two rounds.all the best
Explain Process flow in data warehouse??
what is an use case?
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What are different deliverables according to phases?
Explain the versions of reportnet?
Suppose you are filtering the rows using a filter transformation only the rows meet the condition pass to the target. Tell me where the rows will go that does not meetthe condition.
What is a star schema? Why does one design this way?
Teradata 
