What is an error log table in informatica occurs and how to maintain it in mapping?
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More Data Warehouse General Interview Questions
What is up date strategy and what are th options for update strategy?
What is Time Series algorithm in data mining?
Why is chameleon method used in data warehouse?
What are cluster analysis in data warehousing?
What is factless fact tables?
Explain what is the difference between stop and abort?
What according to you might be the future of data warehousing?
What is a real-time data warehouse?
Explain what is partitioning? What are the types of partitioning?
Explain dimensional modelling?
Do you always need to copy the data before reporting on it?(Example, real-time & on-demand reporting is a requirement)?
in general which algorithms for used?
Teradata 
