data model in dbms | DBMS-Data models | Types of Database Models in DBMS

Data model in DBMS: What are data models in dbms?What are the different categories of Data Models?
Examples of Data Models.
What are Data models?
Data Model is a collection of concept to describe the structure of a database.
Most data models also include a set of basic operations for specifying data retrieval and data updating.
Categories of Data Models:There are 3 Categories of Data Models:
1.High-level (conceptual) data model
2. Low-level (Physical) data model
3. Representational(Implementation) data model

What is High Level Data Model?
High Level Data models or conceptual data model provide concepts that are close to the way many users perceive data.
Conceptual data model uses concepts like entity, relation and attributes to describe the data model.
Describing the structure of a database such that even a kid or a lay man would understand it easily.
Low level Data model
Low level data model or physical data model describes how the data is stored on the physical storage.
Low level data model is not for common end user.
Physical data model is for computer specialist.
Representational data model:
Representational data model is an intermediate type of data model between the two extreme data model.
Representational data model is also called implementation data model because it is neither so difficult to understand for the end user nor at the same time it is not far from how the data is stored on the computer storage.
Representational data model hide details of data storage disk, but can be implemented on a computer directly.
What are we going to learn?
Categories of data models.
Types of data models

Categories of data models
There are 3 main categories of data models in which we can categorize data models.
High level or conceptual data model
Low level or physical data model
Representational or implementation data models
Types of data models
Entity-Relationship model
relational data model
Network model
Hierarchical model
#datamodel #dbms #gate2021

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[marvelousnelson]

It's so amazing how you can summarize topics worth 6-10 pages in my textbook in just 12 impactful minutes 👏🏽👏🏽👏🏽👏🏽

[khushikala]

Glad I found this video. Thank you so much for such easy explanation.😄

[arulkumaransendilvel]

simples way of explaination ease to understand.

[upparakumar]

Sir entity represents rectangle shape, attributes represents ellipse or oval.

[beunique]

Thank you so much for the clear explanation

[cliffordrobledo]

thank you it help me very well to understand what is database model categories and types of it thank you again

[khen_tech]

it's so amazing, that was clear and simple to understand

[gulshantudu]

Sir confusion h rply pls
Conceptual level, external level, internal level KY hai tab
Levels and models me difference hote h naa
Yeh levels Wala confusion abstraction se aaya hai sir wahi abstraction k 3 architecture hai in levels
Toh pls bataiye ki levels models same h ky
Agr hai toh usse level par categories q kia. Gya wo bhi abstraction k architecture me Bht Bada confusion h pls rply

[mr.chandu]

Oh my God
It's amazing
Simple way explenation 🔥🔥🔥😎🤏
Thank you 😊

[sreevandanavandana]

Wow and super teaching and excellent and good and thank you sir for explaining for us these and we have exam tomorrow and we will write these answers they will given suppose 😃🤣

[devulapallyswetha]

Thank you sir..
Simple and easy to understand

[chotu_.]

Sir, entity represent an rectangular shape and attributes represent an oval shape right???

[venkataramana]

Sir, but I have 2 more data model
Object oriented model and functional data model ....then what about them??

[divyasrichodimella]

Sir, can you please explain about object oriented model and functional data model .

[pavan-A]

Sir once make video on types of relationships in dbms

[rajraj-kmlg]

Can u explain DDL, DCL DML queries briefly

[believer]

Sir then what about object oriented model in which category it comes under🙄

[guptaashok]

Evey time I watch a video, I see many different terms for modeling and get confused. Where do we fit, dimensional model and star and snowflak schemas.

[aasthabhattarai]

The er model seems to be wrong the entity shall be in rectangle and attribute shall be in oval...otherwise the video is really informative