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Mapping Parameters
How can we use mapping parameters?
naidubava
- Sep 17th, 2008
Mapping Parameters: Mapping parameter is a constant value which points to any datatype in the entire mapping. its value will not be changed as earlier said. Mapping variable: Mapping variable is same ...
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Surrogate key
Why we implement sarrogate key in ETL Process?
mallikkd
- Aug 14th, 2010
It is a unique primary key that is not derived from the data that it represents, therefore changes to the data will not change the primary key.In star schema it is used to join Dimension and Fact tables.
ramadevi1111
- Apr 16th, 2009
To generate sequence numberGenerally it starts with 0neBasically it is to differentiate the primary key
