CONTENTS<br /><ul><li> INTODUCTION
 DEFINITION
COMPONENTS OF DBMS
MODEL
CAPABILITY</li></ul>10/6/2009<br />1<br />PREPARED BY RAM<br />
INTRODUCTION<br />A database is a collection of information categorized by specific fields. Databases are usually searchab...
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Data Base Management

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Data Base Management

  1. 1. CONTENTS<br /><ul><li> INTODUCTION
  2. 2. DEFINITION
  3. 3. COMPONENTS OF DBMS
  4. 4. MODEL
  5. 5. CAPABILITY</li></ul>10/6/2009<br />1<br />PREPARED BY RAM<br />
  6. 6. INTRODUCTION<br />A database is a collection of information categorized by specific fields. Databases are usually searchable by keywords.<br />A collection of related electronic records in a standardized format, searchable in a variety of ways, such as title, author, subject, and keyword.<br />10/6/2009<br />2<br />PREPARED BY RAM<br />
  7. 7. DEFINITION<br />A DBMS is a set of software programs that controls the organization, storage, management, and retrieval of data in a database<br />A set of programs designed to organize, store, and retrieve machine-readable information from a computer-maintained database or data bank<br />A Database Management System (DBMS) is a set of computer programs that controls the creation, maintenance, and the use of the database of an organization and its end users<br />10/6/2009<br />3<br />PREPARED BY RAM<br />
  8. 8. COMPONENTS OF DBMS<br />DBMS Engine:accepts logical request from the various other DBMS subsystems, converts them into physical equivalent<br />Data Definition Subsystem: helps user to create and maintain the data dictionary<br />Data Manipulation Subsystem: helps user to add, change, and delete information<br />Application Generation Subsystem: help users to develop transactions-intensive applications<br />Data Administration Subsystem: helps users to manage the overall database environment<br />10/6/2009<br />4<br />PREPARED BY RAM<br />
  9. 9. DBMS MODEL<br />hierarchical model <br />network model<br />relational model<br />MULTIDIMENSIONAL MODEL<br />object ORIENTED model<br />10/6/2009<br />5<br />PREPARED BY RAM<br />
  10. 10. DBMS CAPABILITY <br />Query ability  <br />Backup and replication  <br />Rule enforcement  <br />Security<br />Computation <br />Change and access logging  <br />Automated optimization  <br />10/6/2009<br />6<br />PREPARED BY RAM<br />

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