Database management functions
Upcoming SlideShare
Loading in...5
×
 

Like this? Share it with your network

Share

Database management functions

on

  • 6,597 views

 

Statistics

Views

Total Views
6,597
Views on SlideShare
6,597
Embed Views
0

Actions

Likes
0
Downloads
70
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Database management functions Presentation Transcript

  • 1.  IS A COLLECTION OF PROGRAMS THAT MANAGES THE DATABASES STRUCTURE AND CONTROL ACCESS TO THE DATA STORED IN THE DATABASE.
  • 2.  DBMS performs several important functions that guarantee the integrity and consistency of the data in the database.
  • 3.  Dbms stores definitions of the data elements and their relationships in a data dictionary. All programs that access the data in the database work through the dbms.
  • 4. Dbms creates and manage the complex structures required for data storage, thus relieving you from the difficult task o defif defining and programming the physical data characteristics.Modern DBMS systems provides storage not only for the data but also for related data entry forms or screen
  • 5.  DBMS transforms entered data to conform to required data structures.For ex.Imagine an enterprise database used by
  • 6.  DBMS creates a security systems that enforces user security and data privacy. Security rules determine which users can access the database, which data items each user can access, and which data operations the user can perform. Data administration- examines data security and privacy issues in greater detail.
  • 7.  To provide data integrity and data consistency, the dbms uses sophisticated algorithms to ensure that multiple users can access the database concurrently without compromising the integrity of the database.
  • 8.  Dbms provide backup and data recovery to ensure data safety and integriy.
  • 9.  DBMS promotes and enforce integrity rules, thus minimizing data redundancy and maximizing data consistency.
  • 10.  DBMS provides data access through a query language. Query language- is a nonprocedural language—one that lets the user specify what must be done without having to specify how it is to be done.
  • 11.  Also provide data access to programmers via procedural (3gl) languages such as cobol, C, PASCAL, visual basic and C++ Also provides administrative utilities used by the DBA and the database designer to create , implement, monitor, and maintain the database. Structured query langua ge-is the de facto query language and data access standard supported by the majority of DBMS vendors.
  • 12.  DBMS accept end-user requests via multiple, different network environments.For ex.The dbms might provide access to the database via the internet through the use of web browsers such as mozilla firefox or Microsoft internet explorer.
  • 13.  End users can generate answer to queries by filling in screen forms through their their preferred web browser. The dbms can automatically publish predefined reports on a web site. DBMS can connect to third party systems to distribute information via e-mail or other productivity applications.