Other databases
Desktop databases are not suitable for everything. For example where you expect large numbers of users, live transactions or 'distributed' systems (where users and sometimes even data are in different locations).
In this case you may need to use a 'server' database which are designed for this purpose for example Microsoft's SQL Server, MySQL, Oracle and DB2.
'Server' databases provide enhanced security and better performance for larger databases. But they can be more expensive to develop, maintain, and alter.
Unlike desktop databases they do not come in a package with all the tools you need bundled together, and often involve the use of a combination of software and technologies.
One common use of 'server' databases is on the web where they are often used for content management, e-commerce and other dynamic (interactive) web sites. Two popular choices for this are MySQL and SQL Server.