What is operational data store (ods)?
No Answer is Posted For this Question
Be the First to Post Answer
Where can one get more info about Data Warehousing?
Is there any difference in testing database and data ware housing?
what is parallel query?
Explain the difference between oltp and olap?
What is the difference between drill through and masterdetail reports?
What are various warehousing tools?
Suggest a good author for hyperion in data warehousing?
How to reduce warnings?
How to load the time dimension?
How to eliminate duplicate rows from flat file?
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 a fact table?