DBMS |Database management system for Computer Science| dbms notes for competitive exam

DBMS: Fundamental Concepts Of Data Base Management System 

Database Management system (DBMS) is one of the Most Important trending Topics which are asked int the Every Interview Questions of Placement Jobs in different MNCs, College Semester and Competitive exams of Bank, Engineering exams. 

Here in this Article the Fundamental of DBMS, the Advantages of DBMS, Relational Data Base Data models in DBMS are Explained which will be Helpful to Understand the Basic Concepts Of DBMS.

the DBMS MCQ  questions 

 

Here try to clear Some important Terms described to Know The  Overview of DBMS. 

Fundamentals of Database Management System 

1. DBMS Basics 

• Data 

• Information 

• Knowledge 

• Data processing

• Database 

• Database system 

• RDBMS 

2. Data Model in DBMS 

• Object-Oriented Model 

• E-R Model 

• Record Base Models.

• Physical Data Models 

• Relational Data Model 

Here in the Given Below the Fundamental Basics DBMS & Database Models are briefly Discussed.

1. What is Data? 

The Data Can be Anything, it is the Basic raw facts and Figures about an object. It is in the Unprocessed, Unorganised form. 

"Facts " represent by Numbers, Characters, String, Symbols.

Ex : 

Number(23), Character(A,B...Z), String(Gagan),Special Character or symbols(#,$,%) etc.

2. What is information? 

The Processed form of Data is known as information. Data represents with a Context it is also known as information, which means data in the Organized form.                       

Data + Context= Information 

•  Data with " Context " Converted into Useful information. 

In the previous example wrote Number(23), Character(A,C...Z),Symbol(#,$,%).it does not make any sense. 

Here the Context means, any Meaning provides to data. if context changes then the information will also change.

1. Name = Gagan 

2. Age = 23 

3. A = Section 

4. $ = Cost 

Facts with Context it Converts into information   

     

• Infromation Helpfull user to Make Decisions. 

     Data  ∝ Information 

Data processing 

• Data processing In Simple word also say that Data is  Input and Information is Output.    

    

Introduction to the database management system

A database management system is software in a computer, which is the collection of logically related data that are stored in a data file.

Dbms use for the Managing the different data query Operations like 

1.Create

2. Insert 

3. Update 

4. Delete 

5. Retrieve 

It's also provide the Security to both user data and System data. 

Here the introduction database management system (DBMS)is explained, which will help the student & aspirants to help in their DBMS for competitive exam preparation.