DBMS

Unprocessed data -> Data
Processed data -> Record

Table -> Processing data stored in table
Application of DBMS :

1. Sales
2. Banking
3. Universities
4. Telecommunication

Query

Data Model:
Descripting data

Relational Model
Entity Relational Model
Ob

Relational Model
Multiple data
Each record -> Attribute

ERD

1. It is called ER Model