Comparing Relational Database

Respond to the following in a minimum of 175 words: 

RDBMS are currently very popular, and many are available in the marketplace. The application that specific RDBMS are most appropriate for depends on the application's requirements in terms of functionality, speed, security, cost, ramp-up time (the time it takes staff responsible for installing, managing, and working with the software to become proficient at doing so), and the ability to integrate easily with other systems.

For this discussion, research at least one commercial and one open-source RDBMS such as Oracle®, MS SQL server, MySQL, MS Access, IBM DB2, and PostgreSQL. (You may choose others.)

Discuss what you find with your instructor and classmates.

Answer the following in your discussion:

1. Which commercial database and which open source database did you select?
2. What are the pros and cons of each database based on the criteria listed above?
3. If you were to implement a new RDBMS for a new start-up company, which one would you choose? Why?
4. What are some concerns of implementing a new database?