What are Fact tables and Dimension Tables?

6 Answers   IBM,

---

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

0 Answers  

---

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

0 Answers  

---

How can we acheive correlated sub-query in designer?can anyone help me in this regard?

0 Answers  

---

Explain hybrid slowly changing dimension?

0 Answers  

---

what is query optimizer? what are different types of optimizer s supported by oracle ?

1 Answers   ABC,

---

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,

---

Is there any rownum object from which we can do this?

0 Answers  

---

What is a Data Cube?

1 Answers  

---

What a static and local variable?

0 Answers  

---

What are the steps involved in designing a fact table?

0 Answers  

---

I know of using applysimple, but there are other ways too?

0 Answers  

---