Data Warehouse General Interview Questions
Questions Answers Views Company eMail

Explain ddl (data definition language)?

573

Explain how to generate iqd file from framework manager?

504

How to limit the max no of rows retrieved in the report?

546

Code the tables statement for a single-level (most common) frequency?

465

What is perform recovery?

534

Can we start and stop single session in concurent bstch?

522

Suppose if a session fails after loading of 10,000 records in to the target.how can you load the records from 10001 the record when you run the session next time?

577

How to provide security in frame work manager for a query subject?

517

How to improve session performance in aggregator transformation?

524

Is framework manager an un-needed overhead? As we know report studio allows us to create the data model from a query and thereby skipping framework manager. Given that this feature is available, in what scenarios would one want to skip framework manager?

571

What is a functional dependency f said to be minimal?

541

How to eliminate duplicate rows from flat file?

502

How to generate the cubes in framework manager?

548

What are target types on the server?

550

What is difference between model & package?

564


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Un-Answered Questions { Data Warehouse General }

What is index awareness in universe?

571


Explain what is the difference between stop and abort?

536


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

516


How to join 3 database like flat file, oracle, db2 in informatrica?

642


What is the difference between olap and oltp?

555






Explain how does tuple-oriented relational calculus differ from domain-oriented relational calculus?

709


What is freehand sql?

603


What are session timeout and application timeout?

526


What is the difference between power center & power mart?

500


What are Non-additive facts?

656


What are non-additive facts in detail?

528


What are the key columns in Fact and dimension tables?

544


Explain dimension table ?

554


Why null values are mapped as 0 in fact tables?

528


How to allow a dynamic selection of a column for a measure in a chart,without using variable?

506