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GeekInterview.com > Interview Questions > Data Warehousing > DataStage
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Question: What are Stage Variables, Derivations and Constants?
Answer: Stage Variable - An intermediate processing variable that retains value during read and doesnt pass the value into target column.
Derivation - Expression that specifies value to be passed on to the target column.
Constant - Conditions that are either true or false that specifies flow of data with a link.
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| September 09, 2007 06:19:13 |
#6 |
| Sreenubabu P |
Member Since: Visitor Total Comments: N/A |
RE: What are Stage Variables, Derivations and Constant...
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Hi
Your answer is wrong for order of execution of stage variables, constraints and derivations...
the right order is..
stage variables
constraints
Derivations |
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