Introduction to DBMS
Full form of DBMS - Data-Base Managment System.
To Overcome the Drawbacks of File Management system our Technology Invented this DBMS.
By DBMS we can talk to the Physical Database.
DBMS is actually a software that is used to Create and Manipulate the Database.
Drawbacks of File Management
Redundancy Occurs in file.
Volatile in Nature.
For vast data it is not Feasible.
Data Dependency Occurts.
Changes in data require Changes in Coding.
Drawbacks of Oracle
Application is very small DBMS is not required.
Maintainance cost is very high.
Training is needed.
Applicartion of DBMS
Program Data Independence.
Authorized Implementation or Accesses.
High Level Security.
Persistance storage for objects.
We can implement Index.
Characteristics of DBMS
The 1st Characteristic is Program Data Independence.
Table of content or Structure of data is known as data Dictionary as well as Meta-Data.
Persistance Storage for Object, Objects were be there as long as data base exist.
Sharable and Multi User Transaction Processing.
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