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ETL Interview Questions and Answers

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ETL Interview Questions & Answers


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Questions Question: What are the modules in Power Mart?
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Questions Question: What are active transformation / Passive transformations?
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Questions Question: What are the different Lookup methods used in Informatica?
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Questions Question: Can Informatica load heterogeneous targets from heterogeneous sources?
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Questions Question: How do we call shell scripts from informatica?
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Questions Question: What is Informatica Metadata and where is it stored?
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Questions Question: What is a mapping, session, worklet, workflow, mapplet?
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Questions Question: How can we use mapping variables in Informatica? Where do we use them?
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Questions Question: What are parameter files ? Where do we use them?
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Questions Question: Can we override a native sql query within Informatica? Where do we do it? How do we do it?
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Questions Question: Can we use procedural logic inside Infromatica? If yes how , if now how can we use external procedural logic in informatica?
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Questions Question: Do we need an ETL tool? When do we go for the tools in the market?
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Questions Question: How do we extract SAP data Using Informatica? What is ABAP? What are IDOCS?
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Questions Question: How to determine what records to extract?
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Questions Question: What is Full load & Incremental or Refresh load?
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Questions Question: Techniques of Error Handling - Ignore , Rejecting bad records to a flat file , loading the records and reviewing them (default values)
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Questions Question: What are snapshots? What are materialized views & where do we use them? What is a materialized view log?
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Questions Question: What is partitioning? What are the types of partitioning?
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Questions Question: When do we Analyze the tables? How do we do it?
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Questions Question: Compare ETL & Manual development?
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Latest 10 Answers
When there is any situation that u should attach a new patch to ur kernel , then download the patch and install it,to make changes to kernel , go to ok prompt and type boot -r, it will update or reconfigure the kernel
Honesty, helpful and reliable
procedure is a set of sql statement ,are combined to gether to perform a specific task or to solve a specifi problem.it does not return value.
leadership is power to influence a group so that the members willingly exert efforts as aspired by the leader.
I have the unique combination of technical skill and the ability to build strong customer relationship. I have the ability to stay focussed in stressfull situation. I would be great addition to your team.
first execute the bc search spec to fetch the data then executes the applet search spec if applet search spec is not match with bc it skips
TCP-Transmission Control Protocol. TCP is Reliable. TCP is Connection oriented. UDP-User Datagram Protoco UDP is Unreliable. UDP is Connectionless.
By default in structure all data member and member function are public,i,e if you not mentation any access specifier. But in case of class By default all data member and member function are private.
Structure is a user defined data type. By default all structure variables are public type and we cann't use access specifier in structure type variable, where as in class we can define objects(variables) under required access specifier type.
variable cost is the cost which is not fixed in nature

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