ETL Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

ETL Interview Questions

Questions Answers Views Company eMail

what do u do when DB time takes more?in sap bi

2141

what is the use of structures?how many nodes can u create in a structure?

2170

Can we create Hierarchies in generic datasources?

CTS,

2328

How can we handle Rejection Logic in Source tables while we are matching the data in Target side in ETL Testing ?

2 5569

tell me few points when u become TL

Infosys,

2455

what make u disappointmnets in u r career

Infosys,

2138

Hi Guys, my requirement is to load 1 yr data from oracle to teradata database through abinitio etl graph.i need to schedule this as a monthly job.but i want to load 12 month data for the first time and from second time it should load last (recent) month data and delete 13th month data. For example For the first time it should load 201208 to 201108 data, second time it should delete 201108 month data and load 201209 month data. I developed garph to load 12 month data ,but i don't know how to handle above requirement as am new to abinitio. i greatly appreciate you help.Thank You.

2155

Hi, Lookup() is what kind of join ?

Satyam,

6 11946

what is the difference between cubes and package in cognos

Cognizant,

4890

my name is amar i want display 1st line A 2nd line M 3rd line A 4th line R in database & informatica

HCL,

1 4220

How we can see table structure?

iGate,

2 6597

What exact we can see in table?

1 3845

how to do aggregation (year wise quantity ) using only source qualifier, the source is sql server date as datetime data type and target as flat file with year (string datatype)

Thomson,

2626

Can we parametrize the values of IN statement. Ex. Inside parameter file: Parameter='A','B','C' Inside Code: IN (INPUT_CHARACTER, $$Parameter)

Cognizant, IBM,

2 6074

explain about your project architecture in ssis..could u please send to my mail..vinod.kjvk@gmail.com

Tech Mahindra,

4050

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Un-Answered Questions { ETL }

1.Identify and discuss the problems which are occurred during data quality verification for the single-source and multi-source problems. 2.Testing has very important role in DWH. In ETL testing phase, how can we perform the integration testing and regression testing? 3.What are the perquisites of system testing and regression testing in ETL phase?

2183

What are your responsibilities as an etl tester?

1063

What are the key benefits of ETL Testing?

986

What is tracing level? How many types of transformations supported by sorted input?

915

Explain the key challenges that you face while performing etl testing.

949

what is pmrep command?

11486

explain the methodology of Data Warehousing?(Polaries)

1936

Give the benefits of data integration suite?

867

how do u estimate the depth of the session scheduling queue? Where do u set the number of maximum concurrent sessions that Informatica can run at a given time?

1955

Give a way in which u can implement a real time scenario where data in a table is changing and u need to look up data from it.How will u configure the look up transform for this purpose?

1846

how does the server recongnise the source and target databases.Elaborate on this

2626

hoe to access second value in mapping parameter if it is having more than one value ?????????????

1482

how would u estimate the size of Lookup transform data and index cache?

2077

What are cubes and olap cubes?

918

what are Lookup caches options? Including persistent caches.

1895

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