Explain what type of indexing mechanism do we need to use for a typical datawarehouse?
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What are the data types present in bo?
What is the use of incremental aggregation? Explain me in brief with an example?
Explain what are the methodologies of data warehousing?
Explain what is the metadata extension?
How Materialized Views are linked with Oracle DataWare house?
What is an error log table in informatica occurs and how to maintain it in mapping?
What are the mapping paramaters and maping variables?
What is conformed fact?
Which kind of index is preferred in DWH?
What are Fact tables and Dimension Tables?
What is hybrid slowly changing dimension?
What is called dimensional modelling?