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why do we need Database

August 3, 2009

Why do we need a database?

1 In this booming world without database, we cannot do any thing. We need to share data of all kinds between users (except for very small systems), between tools working on them, and usually between different computers. All should be able to work with the same set of data.

2 We need persistent storage for store the information.

3 A DBMS may provide more efficient access to large amounts of data, through indexing and other optimizations.

4 A DBMS may also be used for communication between different users or applications.

Major Database in the software industry:

1. oracle

2. MS SQL Server

3. MySQL

4. DB2

5. fyracle

6. Access

Open Source database are as follows:

1. Apache derby

2. MySQl 5.0

3. PostgreSQL

4. One$DB 4.0

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