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ETL Interview Questions
Questions Answers Views Company eMail

What are the new features of informatica 9 version?

2 7849

What is Relational Integrity?

1 3459

working of line item dimension......pls,tell overall flow

1 3598

If you concatenate data from a normalizer transformation,the ports you concatenate cannot include OCCURS(T/F).

 1 11381

How to Check the source record count from traget table.

IBM,

5 12189

how to load the data to fact table?

2142

Can anyone explain me a scenario from banking and finance...more precisely a mapping

IBM,

2048

How to load Session Statistics (Workflow name, TgtRows, Rejected Rows, SessStartTime,SessEndTime..)into a database table ?? Another Question: I want to pass values from oracle table or Flat file in Mapping parameter/Variable.. What is the method for that..Please provide me the solution step by step

 1 7071

give detail on the sales project how many number of dimensions & fact tables are used in projec briefly. how the four fact tables taken in the project.

HCL,

1915

1. if lookup tr is giving poor performamence. what u do. 2. i have emp,dept table. i want output ename,empno,dname,max(sal). 3. can any one tell me project flow in real time scenario. please send me mail any queries and answers my mail id is yaparala@gmail.com

HCL, iGate,

2 5693

What is the main difference between peek stage and copy stage

 2 17602

Hi please try to reply with answer. my mail id is raghu.1028@gmail.com. if the source is having millions of records, but having theree target tables. As per user the first record need to insert into first target and second record in to a second target and third into third target, similarly the process needs to repeat?

 5 6934

Knowledge on what are the improtant characteristice that we need ot consider while developing an ETL Code

 1544

diff b/w dwh & data mart diff b/w star schema & snow flake schema diff b/w fact table & dimension table what are the contents in requirement specification what are the docs needed for testing draw ur proj architecture

L&T,

2080

indatastage 8.1 surrgoate key generates seqences numbers write but there is limite value i want to reset the seqence after gettting some highest value like i want o/p like this 1 2 3 4 5 .............10000 1 2 3.........10000

TCS,

1 4223

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Un-Answered Questions { ETL }

What do you understand by active and passive transformations?

542

Explain about power designer data modeling software?

455

What are the ETL Testing Operations?

601

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

1746

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

1626




Explain about hash partitioning?

535

what is the main role of FI on business

1619

Can we create Hierarchies in generic datasources?

1913

what are the types in error loging?

1621

What are the various tools used in etl?

536

Hi, can anyone plz share the project architecture for etl testing(banking domain) plz explain the architecture .

2551

Explain different types of partitioning?

611

what is Forward,Reverse and Re_engineering?

1716

What are the types of data warehouse applications and what is the difference between data mining and data warehousing?

545

What are snapshots? What are materialized views & where do we use them? What is a materialized view log?

642

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