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Data Warehouse Interview Questions
Questions Answers Views Company eMail

every DWH must have time dimension so now what is the use of the time dimension how we can calculate sales for one month,half-yr'ly,and year'ly?how we are doing this using time dimension.

IBM,

1 5132

What is diff between connected and unconnected lookup?

BirlaSoft, Blue Star Infotech,

5 9032

What is diff joiner and lookup

BirlaSoft,

4 8649

what is mapping parameter and mapping variables

BirlaSoft,

1 5207

if i am having 10 records in source, i want 20 records in target...how will you do it

BirlaSoft, IBM,

13 18668

without matching columns in two tables. how can you join

BirlaSoft,

5 11567

how to call lookup qualifer in unconnected look;up

BirlaSoft,

1 5698

What is differnce between Error code and Error Level in Bteq

IBM,

6 39414

Can we take collect stats on Dervied Tables and Volitable tables, What is Golabal Temporary table what is the use of this Golabal Temporary table ,When we create any kind table in Teradata it will show in Golabal Temporary table

IBM,

6 21370

can any 1 put a difference between datastage 7.5 and 8.0 all concepts plz r mail 2 me anu4u09@gmail.com

IBM,

4 8261

How to load Session Statistics (Workflow name, TgtRows, Rejected Rows, SessStartTime,SessEndTime..)into a database table ?? Another Question: I want to pass values from oracle table or Flat file in Mapping parameter/Variable.. What is the method for that..Please provide me the solution step by step

1 7855

can any one explain me what i have to tell about insurance project in interview,,,,when he asked to tell about ur project

2532

what is crosstab space

IBM,

1 13583

I have in my source Records like 100,101,102 etc. I have router transformation which has groups like one group is empno=100, second group is empno>99. Now i want to know my source record 100 loads into which group?

Span Systems,

5 8357

My Source qualifier has empno, sal. Now my mapping is like SQ(EMPNO)->AGGR->EXP->TARGET SAL ------------>TARGET ? Is this mapping valid or any issues are there if we design like this?

Span Systems,

3 6414


Un-Answered Questions { Data Warehouse }

Hi, what is use of Macros,functions and Routines..? At what situation you are used. If you know the answer please explain it. Thanks.

2077


WAT TYPE OF PL/SQL QUERRYS USED IN DATASTAGE

3656


What is the differnce between SDTM 3.1.2 to 3.1.1 version

5081


dimension object created in oracle can be imported in designer?how?

2998


what are the data sources extracted from logistics cockpit in sap bw project and what is the requirement for it ?

2639


How to elaborate powercenter integration service?

1148


How do you load more than 1 max sal in each department through informatica or write sql query in oracle?

1593


What does reusable transformation mean?

1148


In ARRAY processing, what does the DIM function do?

1185


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?

1274


in the flow of data step processing, what is the first action in a typical data step? : Sas programming

1085


webI report not showing Barcode in PDF format, i have used BC39 font,but barcode is shown in HTML but not in PDF, please any solutions??

4416


What is the purpose of having stored procedures in a database?

1181


Please let me know how to make encryption and decryption with example?

1919


If you need the value of a variable rather than the variable itself what would you use to load the value to a macro variable? : sas-macro

1077