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Data Warehouse Interview Questions
Questions Answers Views Company eMail

what is an ETL or ETT? And what are the different types?

1 7582

how do u extract data from different data sources explain with an example?

1 2345

what are the reporting tools and difference between them?

1 2164

how do u automate Extraction process?

1 4939

without using ETL tool can u prepare a Data warehousing and maintaining?

3 8307

how do u identify the changed records in operational data?

QualTech,

1 2607

what is SMP AND MPP?

8 64879

what are the facilities provided by data warehouse to analytical users?

1 2142

what are the facilities provided by OLAP to analytical users?

1 4812

what is HISTOGRAM? how to generate statistics?

1 5127

how do u set the size of block buffer?

1 4514

how do u implement unconn.stored proc. in a mapping?

1 5010

if u can't find what you are looking for in lookup table, how do you handle?

1 5350

why oracle is the best database for data warehousing?

HCL,

4 9608

for data loading in oracle, what are conventional loading , what are conventional loading and direct-path loading?

1 2205


Un-Answered Questions { Data Warehouse }

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!!!

2259


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

1769


Hi Friends, Am Priya,new to your forum. am looking for Interview questions on SAS Platform Administration. I searched everywhere but I couldn't find them,please can anyone help me with complete interview questions normally everyone will face in the interviews on SAS Administration. am really facing problems in the interviews,am not able to answer any of their questions. I would really appreciate all your help if you can email the complete Interview Questions to priyafeb84@gmail.com Kindly awaiting for your reply with eager

2149


Demonstrate experience in maintaining quality process standards?

2672


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

1173


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.

2811


1. When u r checking out what ll happens for version no? a. Increase b. decrease c.reset to 0 d. reset to 1 e. no change 2. Salary of all employees needed to add with the commision. What transfrmation to be used? a. SQ and Expression b. SQ c. Update Strategy d. Expression 3. Which of the task is used to run a session based on success of the other session? a. Decision b. Event wait c. Email d. Command e. None 4. Types of sources in Informatica? a. Homogenous n Heterogenous b. None c. Cobol n XML d. Flat files e. Flat files and Homogenous n Heterogenous 5. Servers are available in informatica? a. Informatica Server and Workflow server b. Informatica Server and Informatica Repository Server c. Informatica Server d. Workflow server e. Informatica Repository Server 6. While using Pmcmd in cmd line mode, each command must include the connection info of which of the following? a. workflow manager b. Power Center server c. Workflow monitor d. Repository manager e. Designer 7. Workflow montior displays workflows that have run a. once b. twice c. never d.four times e. thrice 8. Mode for handling sessions n workflows? a. server mode b. Wait mode c. Command line mode d. User mode e. Interactive mode 9. Connection details configured in? a. Mapping designer b. Workflow manager c. Workflow monitor d. Repository manager e. Worklet designer Thanks in Advance

4260


how many reports have u created ? explain a few.

2160


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

1200


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

1174


hi frnds any body have cognos projects plz send me two(or)three projects to my mail adress ramureddy.reddy4@gmail.com.

2060


i'm searching on cognos..i want to know real time scenarios..persons having real time exp or undertaking trainings or who searching on cognos...can send me the details...for proper guidence..for project and interview preparation..pls help me out..my mail-id is ammu2india@gmail.com..hope u will respond as soon as possible..thanks..

2766


can anyone provide link to download cognos 7.2 version for download along wiht installation and configuration steps tx in advance

2306


what are the names of the reports that you prepared?

1193


What is dimensional table?

1162