0What is Data:-
The data is stored representation of objects and events which has the meaning .It can be structured or unstructured.
What is Information:-It is the data in the processed form which will increase the knowledge of end user.
What is Metadata:-It is the data which describes the properties or characteristics of the user data and its context.
What is database:-Database is the collection of data in one or more data file.
DBMS:-Database management system is the software which is used to create or manage the database and provides the controlled access to the database.
Database from Oracle point of View:-Database is the collection of data in one or more data file.
It is the collection of Logical structure and Physical Structure which are configured to maintain the integrity of the system.
Logical structured:-In the database State, The Logical structured are the representation of the actual metadata which are in the form of Table space, data dictionary.
Table space:- It is invisible in nature and bridge between the oracle database and Data File structure.
Data dictionary: - It is also a logical structure which basically captures the metadata of the Objects.
Physical Structure: - In the database State, The Physical structure are in the form of Table,synonym,view etc.
