Discuss the advantages & Disadvantages of star & snowflake
schema?

Answer Posted / alhad kulkarni

The question is Advantages and Disadvantages, not What is
Star or Snowflake.
Star Adv: Reduced Joins, Faster Query Operation.
Snow Adv: Distributed data, Easier to obtain fact-less data
e.g. Orders Shipped across one Quarter.

Star DisAdv: Bigger table sizes, Too many rows in Fact Table
Snow DisAdv: More number of joins, Slower Query operation,

Is This Answer Correct ?    78 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

In development project what is the process to follow for an etl developer from day1

1278


What is meant by query override?

631


Name at least 5 different types of transformations used in mapping design and state the use of each.?

668


Why union transformation is an active transformation?

651


Global and Local shortcuts. Advantages.

1464






4 yrs etl devloper roles and responsibilities?any body give solutions

1568


What is a rank transform?

670


How can you differentiate between powercenter and power map?

621


What is joiner change?

669


How to do unit testing in informatica? How to load data in informatica ?

645


Explain what are the different types of transformation available in informatica. And what are the mostly used ones among them?

603


Explain is there any way to read the ms excel datas directly into informatica? Like is there any possibilities to take excel file as target?

629


Why do we need informatica?

552


Explain Dataware house architecture .how data flow from intial to end?

2120


Can we create a node as a gateway node and the same node can be assigned to a grid?

635