Explain the different kinds of facts.
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What is surrogate key?
What the difference is between a database, a data warehouse and a data mart?
Insert else update option in which situation we will use
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what is update strategy transformation ?
What are the measure objects?
where actually the usage of push down optimization happens...
What is joiner cache?
If my source is having 30 million records, so obviously the cache could not be allocated with sufficient memory. What needs to be done in this case?
In pmcmd command we need to type -p:password. Will it be visible to others who is having access to this file ?
1)you have multiple source system where u receive files ,how do you actually load into mapping using transformation,what are the transformation you use? 2)you have files in ftp location ,how do you get it into mapping with you ETL concept?