What is the main difference between schema in rdbms and schemas in datawarehouse?



What is the main difference between schema in rdbms and schemas in datawarehouse?..

Answer / Rajdeep Gupta

The main difference between a schema in Relational Database Management Systems (RDBMS) and a schema in Data Warehousing lies in their structure and purpose. An RDBMS schema typically groups tables, views, indexes, and other database objects by application or project, providing a logical organization for related data. A Data Warehouse schema, specifically a Star Schema, organizes data into facts (measures) and dimensions (qualitative characteristics), optimizing the structure for querying and reporting.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Data Warehouse General Interview Questions

What is META DATA information in Data warehousing projects?

2 Answers   IBM,


Explain a relation schema and a relation?

1 Answers  


What are the data marts?

1 Answers  


What Oracle features can be used to optimize my Warehouse system?

1 Answers  


Fact table is in normalized or de-normalized form?

1 Answers  


What are the primary ways to store data in OLAP?

3 Answers  


Explain what are fact, dimension, and measure?

1 Answers  


Can we have multiple application.cfm file in an application?

1 Answers  


What is critical column?

1 Answers  


What is a relationship?

1 Answers  


Explain when do we analyze the tables? How do we do it?

1 Answers  


How to calculate fact table granularity?

1 Answers  


Categories