Explain what are the advantages and disadvantages of reporting directly against the database?
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What is loop in data warehousing?
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What is the difference between olap and oltp?
Which are the olap tools available that are supported by oracle?
What is the data type of the surrogate key?
a perceptron has two inputs x1,x2 wih weights w1,w2and bias weight of w0. the activation function of perceptron is h(x).the output of perceptron
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 Data purging?
What are session timeout and application timeout? Where we have to do this process?
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How can you import tables from a database?
Explain what are the modules in power mart?