Explain how to export mappings to the production environment?
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What is surrogate key? Where we use it?
Explain why dimenstion tables are denormalized in nature?
what are confirmed dimension? We alwys give date as a conformed dimension but if it has different format for different contries say YYMMDD for italy and MM-DD-YYYY for france.Then are they not confirmed.
4 Answers IBM, MAHINDRA, Tech Mahindra,
Tell me the Top 10 features of oracle that supports datawarehousing.
Code the tables statement for a single-level (most common) frequency?
State any 5 of Cods guidelines of an OLAP system, brief description each?
Explain what are components of report studio?
what is user variable in affinium campaign? and some real time examples.
Explain techniques of error handling - ignore , rejecting bad records to a flat file , loading the records and reviewing them (default values)?
What is type 2 version dimension?
What are the possible data marts in retail sales?
2.What is staging area ?
4 Answers HCL, IBM, iFlex, TCS,