Hey buddy a database management system (DBMS) is a collection of programs that enables you to store, modify, and extract information from a database.

There are many different types of database management systems, ranging from small systems that run on personal computers to huge systems that run on mainframes.

Examples of database applications:

Computerized library systems

Automated teller machines

Flight reservation systems

Computerized parts inventory systems


Common logical data models for databases include:

Navigational databases

Hierarchical database model
Network model
Graph database
Relational model
Entity–relationship model
Enhanced entity–relationship model
Object model
Document model
Entity–attribute–value model
Star schema
An object-relational database combines the two related structures.

Physical data models include:

Inverted index
Flat file

Other models include:

Associative model
Multidimensional model
Array model
Multivalue model

Specialized models are optimized for particular types of data:

XML database
Semantic model
Content store
Event store
Time series model