What are the names of the layers in etl?
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what are the data modeling tools you have used?(polaris)
Explain me ETL project architecture in Detail?
what is HISTOGRAM? how to generate statistics?
how many steps are there in etl process?
What is fact? What are the types of facts?
What is Data Vault???
Explain do we need an etl tool? When do we go for the tools in the market?
how to do aggregation (year wise quantity ) using only source qualifier, the source is sql server date as datetime data type and target as flat file with year (string datatype)
What are the etl testing operations includes?
How can you use an Oracle sequences in Informatica ? You have an Informatica sequence generator transformation also. which one is better to use?
What do you understand by the term ‘transformation’?
Which transformation we use to convert 'NA' to 'Not Available'