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

Teradata (490)
Business Objects (875)
Cognos (1143)
Informatica (2428)

SAS (1049)
Micro Strategy (282)
ETL (315)
OBIEE (92)

Data Warehouse Interview Questions

Questions Answers Views Company eMail

What is lookup table in etl testing?

1137

for example You have One Table with 4 Columns (Mgr ID, Department ID, Salary, Employee ID). Can you find out the Average Salary and Number of Employee present per Department and Mgr

1331

1057

What is the maximum and minimum length of macro variable

1193

Looking for IBM COGNOS Certification C1000-065 , C2020-605 , C2090-621 , C2090-623 Dumps?

1042

Can someone tell me the behaviour of next_in_sequence() and innovation_number() in a multifile. Suppose I have records 1,1,1,2,2,3,4,4 in a 4ways mfs file. Data in each partition is: 0th : 1,1,1 1st : 2,2 3rd : 3 4th : 4,4 What will be the sequence of these records if I pass next_in_sequence() and innovation_number() ? Also how can I extract 3rd record from each of the 4 partitions of a 4way multifile through AbInitio? In unix we can use m_dump

1 4770

Can some tell me at which level pdl gets resolved when parameters are resolved in abinitio? Also what happens in dml evaluation during parameter evaluation ?

1321

Whenever we load data into oracle table from staging table using exchange partition...then I read somewhere that data actually doesn't move in this and this command only reset the pointer in the data dictionary...so if data doesn't move then how data is loaded into the main table ? I mean wat is the point of pointer update in data dictionary?

971

What is the return type of lookup_not_loaded() ? Does it return 0 or 1 to signify true or false or does it return index ...can someone please explain.

1345

How can we increase the loading performance of oracle table in AbInitio?

1106

What happens when we provide null key to sort, merge and pbks in Abinitio ?

1619

Input Data: AAABBBCC CCAAABB expected output A3B3C2 A3B2C2 How can I achieve this in Ab initio? where In output count of occurrences should be sorted from high to low

1439

Input A 100 NUll A NUll 200 B 100 Null B Null 300 Output A 100 200 B 100 300 Do this using Ab initio

1684

I/p : F1 table have A,B,C,D,E and F2 table having C,E,V i need output 0utput1: ABD output2: V any one suggest me this

978

IN SCD1, insource we have 10 billion records and in the first day its uploaded successfully and in the second day its taking time to upload because some records it might get update or insert new records. As a developer what will be the better solution for this??

994

Un-Answered Questions { Data Warehouse }

How to move or copy the project parameter or project object to my sandbox?

2270

What is defined as Query studio?

1051

What is the difference between the public object&schema object?

1021

Please explain the different stages in creating a report in cognos report net?

976

What is the difference between connected and unconnected stored procedures?

1015

how many maximum session supports to multiload in teradata ??

2064

What is an active transformation?

1052

How can you track login parameters of users in teradata?

1148

Explain bus schema?

918

Explain the different lookup methods used in informatica?

992

Explain sessions and how many types of sessions are there?

971

What does sleep function does in fast load?

1091

What is the SAS data set?

1102

What are the features of SAS?

990

What are non-additive facts in detail?

942

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