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Data Warehouse Interview Questions
Questions Answers Views Company eMail

Mention a few of the ETL tools that come under Teradata.

1 1148

Give the sizes of SMALLINT, BYTEINT and INTEGER.

1 1221

Highlight the advantages of PPI(Partition Primary Index).

1 1144

What is meant by a Least Cost Plan?

1 1127

What is meant by a dispatcher?

1 1073

Highlight the points of differences between the database and user in Teradata.

1 1189

Explain BYNET.

1 1059

Highlight the need for Performance Tuning.

1 1167

In the Primary Index, what is the score of AMPs that are actively involved?

1 1157

A certain load is being imposed on the table and that too, every hour. The traffic in the morning is relatively low, and that of the night is very high. As per this situation, which is the most advisable utility and how is that utility supposed to be loaded?

1 1374

What is meant by a Virtual Disk?

1 1219

What is meant by a Parsing Engine?

1 1241

Explain how spool space is used.

1 1122

What do you mean by parsing?

1 1173

Highlight a few of the advantages that ETL tools have over Teradata.

1 1151


Un-Answered Questions { Data Warehouse }

create a job that splits the data in the Jobs.txt file into four output files. You will direct the data to the different output files using constraints. • Job name: JobLevels • Source file: Jobs.txt • Target file 1: LowLevelJobs.txt − min_lvl between 0 and 25 inclusive. − Same column types and headings as Jobs.txt. − Include column names in the first line of the output file. − Job description column should be preceded by the string “Job Title:” and embedded within square brackets. For example, if the job description is “Designer”, the derived value is: “Job Title: [Designer]”. • Target file 2: MidLevelJobs.txt − min_lvl between 26 and 100 inclusive. − Same format and derivations as Target file 1. • Target file 3: HighLevelJobs.txt − min_lvl between 101 and 500 inclusive. − Same format and derivations as Target file 1. • Rejects file: JobRejects.txt − min_lvl is out of range, i.e., below 0 or above 500. − This file has only two columns: job_id and reject_desc. − reject_desc is a variable-length text field, maximum length 100. It should contain a string of the form: “Level out of range: ”, where is the value in the min_lvl field. My Question is how do you write the stage variable for reject rows.

2798


Write the unconnected lookup syntax and how to return more than one column.

1164


What is the difference between business requirement document and use case document.

1073


explain in detail about type 3?

1078


Demonstrate experience in maintaining quality process standards?

2658


Explain about a time when you discovered a more efficient way to do a work task?

1214


hi..i'm searching on cognos.i want to know some real time explanation..persons who have real time exp and who r searching in this field..can u send ur mail-id..my mail-id is dhaanuus@gmail.com..hope u will respond as soon as possible..

1952


How do you remove duplicate records in informatica? And how many ways are there to do it?

1224


I have 2 doubts regarding the "Input Control" functionality in BI4: 1) Can the Input Controls in BI4 be manipulated? I mean, can we change the IC display as BOLD or change the values from Italics to regular? Or change the colors? 2) How to get hierarchy type control in IC? Let's say my first IC is for Country and second is for State. If I select a particulat country from Ist IC,second one should show me states belonging to selected country. Is that possible? Thanks in advance!!!

2253


What sort of existing documents should business analysts refer to when starting on a new project?

1074


how we can create a FLAG datasets? Ex:-ID age_group no_persons 1 to 10 10 to 20 3 11 to 20 21 to 30 7 21 to 3o 31 to 40 5

2169


hi all i am searching for cognos jobs pls inform about the jobs to:santosh.koora@gmail.com

2425


How to add default rules in transformer?

1278


Just Completed the informatica Certification ,for Dumps please email me on infamaddy@gmail.com i will send it to you 

1769


Hi, If any hav Informatica n DWH FAQ's,Plz do fwd to s.rajanikanth1980@gmail.com Thnx Vani

2340