The document discusses database management systems (DBMS). A DBMS is a collection of data and programs that access and manage the data. It defines how data is structured and stored, and provides mechanisms to manipulate the data. The DBMS ensures data safety and provides convenient and efficient data storage and retrieval. Common uses of DBMSs include sales, accounting, banking, finance, universities, airlines, and telecommunications. A DBMS controls data access, enforces data integrity, manages concurrency control, recovers databases after failures, and maintains database security.

1. Introduction
Prepared by: Bibek Regmi

2.  DBMS is the collection of interrelated data
and set of programs to access those data.
 The DBMS manages incoming data, organizes
it, and provides ways for the data to be
modified or extracted by users or other
programs.

3.  Management of data involves both defining
structure for storage of information and
providing mechanisms for manipulation of
information
 The database system must insure the safety
of the information stored.

4.  primary goal is to provide a way to store and
retrieve database information that is
convenient and efficient
 Designed to manage large bodies of
information.
◦ Microsoft Access, SQL Server, Oracle

5.  Sales
 Accounting
 Banking
 Finance
 Universities
 Airlines
 Telecommunications

6. A DBMS provides facilities for
 controlling data access
 enforcing data integrity
 managing concurrency control
 recovering the database after failures and
restoring it from backup files
 maintaining database security.

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