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Data Warehouse Interview Questions
Questions Answers Views Company eMail

what is the diff. b/w proc means and proc summary?

CitiGroup,

12 50816

how can u create zero observation dataset?

CitiGroup,

11 24917

what is SAS/Graph?

CitiGroup, NTPC,

1 11208

what is the use of proc sql?

CitiGroup,

5 17593

how can u import .csv file in to SAS?tell Syntax?

CitiGroup, Franklin Templeton,

7 32852

how can u extract,transform and loading?

CitiGroup,

2 6875

what is Business Intelligence?

CitiGroup,

3 11206

what is the difference between aggregate table and fact table ? how do you load these two tables ?

Target,

12 54152

what are the transformations that are used in data cleansing ? and how data cleansing takes place ?

3 11917

in unconnected lookup , what are the other transformations , that can be used in place of that expression transformation ?

Target,

9 20867

two types of data are there . one is mainframe and the other is ascii format . in informatica how can you get both the data in a single format in ascii .

TCS,

2 10401

HOW TO GET THE LATEST DATA IN SCD ?

TCS,

4 21973

what is the function of 'F10' informatica ?

IBM,

4 15896

suppose data are coming from different locations and those data will not change . is there any need to use surrogate key ?

Oracle,

3 10426

suppose a session is failed after a transformation , from where that session will run again , i.e . from beginning or from that transformation ?

TCS,

3 10822


Un-Answered Questions { Data Warehouse }

1)s.key generate 1 to 700 records today. tomorrow another 400 will updated how to update the records using s.key generator? 2)source is like :-- DB --> T/F stage1 --> seq1file T/f 1 is linking with T/F2 ---> seq 2 how to load the data? in source i given some conditions those r going in seq1. The another data will going to seq2 how to do this ?

2084


How do you load first and last records into target table? How many ways are there to do it? Explain through mapping flows.

1192


What is a rollup component? Explain about it.

1237


Hi Friends, Please send me Teradata Materials for certifications Thanks in advance !!

2255


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

1217


What is node? How many nodes and amps used in your previous project?

1169


Source has 2 columns: USA,NewYork INDIA,MUMBAI INDIA,DELHI UDS,CHICAGO INDIA,PUNE i want data in target like below: INDIA,MUMBAI1 INDIA,DELHI2 INDIA,PUNE3 USA,NEWYORK1 USA,CHICAGO2

842


Hi friends, what are the new features in abinito3.0?

2855


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.

2801


what are the dimensions that you have in your current project?list them?

2090


sas implementing companies in pune implementing clinical projects if anyone knows plz send ans immediately

3650


explain in detail about type 3?

1080


Hi all , I am planning for informatica S - PowerCenter 8 Mapping Design certification. I have rewuired the dumps for the same. if anyone of you having the same pl. share it with me. This will be of great help. My contact is : sagardev7@gmail.com TIA , Sagar

2816


i want my connection to be dynamic. How can I make it. I mean the username and password should be dynamic. How?

2166


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

2342