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ETL Interview Questions

Below we have listed all the ETL Interview Questions and answers. Feel free to comment on any ETL Interview Questions or answer by the comment feature available on the page.

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ETL is important, as it is the way data actually gets loaded into the warehouse.ETL can also be used for the integration with legacy systems. Usually ETL implementations store an audit trail on positive and negative process runs.

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How can we use mapping variables in Informatica? Where do we use them?
4.2 Rating
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What is the difference between Power Center & Power Mart?
4.0 Rating
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Is there any way to read the MS Excel Data's directly into Informatica?Like IS there any Possibilities to take excel file as target?
3.5 Rating
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Can Informatica load heterogeneous targets from heterogeneous sources?
3.9 Rating
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Can we override a native sql query within Informatica? Where do we do it? How do we do it?
3.9 Rating
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What are the different versions of Informatica?


3.3 Rating
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Can we lookup a table from source qualifier transformation. ie. unconnected lookup

3.8 Rating
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What is ODS (operation data source)

3.6 Rating
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What is Full load & Incremental or Refresh load?
3.8 Rating
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How do we call shell scripts from informatica?
3.5 Rating
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Can we use procedural logic inside Infromatica? If yes how , if now how can we use external procedural logic in informatica?
4.8 Rating
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I'am new to SAS, can anybody explain the process of extracting data from source systems,storing in ODS and how data modelling is done.

4.8 Rating
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What are active transformation / Passive transformations?
4.0 Rating
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What are the various methods of getting incremental records or delta records from the source systems?
3.7 Rating
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What is partitioning? What are the types of partitioning?
3.2 Rating
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What are the various test procedures used to check whether the data is loaded in the backend, performance of the mapping, and quality of the data loaded in INFORMATICA.

4.7 Rating
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Techniques of Error Handling - Ignore , Rejecting bad records to a flat file , loading the records and reviewing them (default values)
3.5 Rating
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What is ETL?
4.1 Rating
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What is Full load & Incremental or Refresh load?
3.1 Rating
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What are parameter files ? Where do we use them?
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India News Network
Latest 20 Questions
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal
"Holiday Packages" announced as an advertisement are an example of _________: (a) Offer (b) Counter Offer (c) Invitation to Offer (d) None of the above
A match fixing contract between a player and a broker is a: (a) Valid Contract (b) Unenforceable Contract (c) Void Contract (d) Illegal Contract
When a bookseller sells a book on cash payment then it is called as ___________: (a) Unilateral Contract (b) Bilateral Contract (c) Executed Contract (d) Executory Contract
____________ agreements are created by situation: (a) Written (b) Oral (c) Void (d) Implied
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