What are the fundamental elements of the data warehouse?
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What is an error log table in informatica occurs and how to maintain it in mapping?
What is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?
What is the advantages data mining over traditional approaches?
What's a Cube in Rolap?
What is confirmed dimension?
What is crass reference table?
What is DTS ?
Hi Guys, I have been to L& T last week ..Please find the questions mentioned below 1)Slowly changing dimension types 2)DML statement 3)DDL statement 4)write a syntax to create database 5) differences between count(*) and count(column) 6) differences between union and union all 7) what is decode 8) what is NVL 9) Arrange the values in ascending order 10,5,20,15,null 10)Primary and surrogate key 11)what is group by clause does? 12)what is difference between truncate and delete 13)what is difference between OLAP and OLTP ? 14)Architecture of Datawarehouse 15)how do you test the data validation from source as (flat file and xml) to staging tables. 16)what is shedule and time bound the mentioned above question asked in two rounds.all the best
What is the use of dimensional modeling in data warehousing?
Suppose a null dataset with 10 variables; I want to print only name of the varibales in log window and also output window. How can we do this one?
What is the data type of the surrogate key?
Can you describe me a problem you faced when you were trying to load data from R3 system and another system outside sap systems?