What is drilling across?

0 Answers  

---

Explain why should you put your data warehouse on a different system than your oltp system?

0 Answers  

---

if you use oracle sql*loader , how do you transform data with it during loading?

0 Answers  

---

What is data analysis?

0 Answers  

---

In general, how many Fact & Dimension tables are present in a Banking Data warehouse project ?

0 Answers  

---

Explain what are the various methods of getting incremental records or delta records from the source systems?

0 Answers  

---

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

2 Answers   L&T,

---

Explain what does level of granularity of a fact table signify?

0 Answers  

---

Suppose we want to display zero when null values coming to report how can we do that?

0 Answers  

---

Explain techniques of error handling - ignore , rejecting bad records to a flat file , loading the records and reviewing them (default values)?

0 Answers  

---

Is it possible to have more than one row on the same table with the same foreign key?

2 Answers  

---

State any 5 of Cods guidelines of an OLAP system, brief description each?

1 Answers  

---