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                    Loading data from DatamartsWhich approach is better and why?Loading data from datamarts to datawarehouse or vice versa? 
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                    Source Qualifier in InformaticaWhat is the Technical reason for having Source Qualifier in Informatica? Can a mapping be implemented without it? (Please don't mention the functionality of SQ) but the main reason why a mapping can't do without it... 

 
  
  
 