SQL SERVER runs only under windows operating system.
In contrast, Oracle, DB2 runs in most of operating systems.
DB2 was originally designed to run on IBM mainframe systems and continues to be the premier database for those systems. It also dominates in hybrid environments where IBM mainframes and newer servers must coexist. Although it has a reputation for being expensive, it is also has a reputation for being reliable and easy to use.
Oracle has a huge installed base of customers and continues to dominate the marketplace, especially for Unix operating system. It is highly reliable, it is expensive and difficult to use.
SQL SERVER is widely used for small to medium sized departmental systems. It is inexpensive and easy to use, but it is also unreliable and for not scaling well for systems with a large number of users.
Friday, February 13, 2009
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