Select a database

I. Classification of databases
1. Small database: Access, Foxbase
2. Medium database: Informix, SQL Server, MySQL
3. Large database: Sybase, DB2, Oracle

Second, how to reasonably use the database in the project, can be based on the following three aspects to start
1, the size of the project
A, how much load, that is, the number of users
B, Cost
C, security

eg
Small database
1, the load is small, the user about 100 people within
For example: Message board, information management system
2, the cost within thousand yuan
3, the security requirements are not high

Medium Database
such as load daily traffic 5000~10000
Cost is within million yuan
Like business websites.

Large database
Massive loads to handle massive amounts of data (SYBASE<ORACLE<DB2 (mass data processing capability))
High security, relatively expensive

See also: http://www.cnblogs.com/linjiqin/archive/2012/01/20/2327761.html

Select a database