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Unconnected Lookup
In which situation do we use unconnected lookup?
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Dependency Problems
What are the possible dependency problems while running session?
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Mapplet Transformations
What are the transformations not used in mapplet and why?
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What r the types of lookup?
Connected and unconnected
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How many ways you can update a relational source definition ?
Two ways 1. Edit the definition 2. Reimport the defintion
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Why we use lookup transformations?
Lookup Transformations can access data from relational tables that are not sources in mapping. With Lookup transformation, we can accomplish the following tasks:Get a related value-Get the Employee Name from Employee table based on the Employee IDPerform Calculation.Update slowly changing dimension tables - We can use unconnected lookup transformation to determine whether the records already exist...