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The best explanation to someone that is just starting off in DBMS. Great job on explaining this in detail!

this is the best DATA MODELLING TUTORIAL i have ever watched. What an explanation good job sir.

The best explanation of the 3 stages of a data model that I have seen anywhere. Definitely worth a watch. I've just revisited as a refresher now that I'm working in master data management. Thank you for the great video.

One hundred percent more thorough and engaging than a textbook. Thank you my friend!

Great video, just the right depth of coverage, optimum length to keep the viewer engaged. Thanks for taking the effort to prepare and share this. 👍

Wow, great video. I tried to read about data models and was 100% lost. Now I 100% understand after watching this video.

best video available on youtube for understanding Data modeling.

Just started my way off with DBMS, being a Mechanical Engineer after going through this, I feel I am in this field since years! Great lesson😌

The best tutorial for data modelling. I have interview ahead and this video is really helpful.

This was explained and presented very well. Extremely helpful. Thank you for creating this video. I took some practice tests for the Microsoft Database Fundamentals Exam (98-364). Now I feel like I really understand the parts that I needed to work on.

Thank you for explaining this! It makes soooo much sense from your POV. My University did not make our weekly lecture notes this simple to understand. Again, thanks dude

Great and simple explanation sir. It saves lot of time from reading theory sometimes

Thank you for such a clear and accurate explanation of the different database modeling stages

Very helpful. Clearly defined each and every models !!!

Thank you for such a great explanation with visual examples. This helped me greatly.

Really good one for beginners to understand easily

This explanation is the best. so easy to comprehend...kudos

Big Thank you Sir for such wonderful explaination!!! Waiting for more video with some business cases

Hats off to you...you made it so easy to understand...i used to have very confusion between conceptual and logical data model...but your explanation cleared all my confusion... Thanks a lot..

You did a good job here. Your diction and pacing were perfect. The diagrams were simple and complete. Thanks.

As an analytics engineer, having realised the downstream cost of a bad data model design, I can totally understand the need for having a structured approach. Thanks for the video.

you killed the game, my friend!

This is actually really good explanation.

It looks like I was learning different data modelling methodology 😃 1. logical model, called also Entity Relationship Diagram (ERD) represents entities and main relations between them, has usually primary keys and some main attributes as well, entity is drawn as a rectangle with rounded corners, and entity name is always singular, an entity is one instance of something, 2. physical model, called also as Data Diagram (DD) is generated from ERD also FK columns are added automatically, other columns can be added to the DD manually as well as other UK, indexes and partitions, entities are called tables, attributes are called columns, table is drawn as a rectangle with sharp corners, having a well designed DD we can generate table creation scripts so no manual work is required from developers, table name is always plural, a table is a collection of entities, 3. we should avoid adding a table name to table column names, table product should have columns description, name, short name, size... but not product_name, product_description, product_size...

Hands down the best Video out there.

Best explanation for these 3 models

Great quick intro to the different levels. Thank you!

Just a great video for beginner who want to understand the data model. Thanks for such short but very useful concepts

Awesome 10 minutes 👍

Very simple video, but extremely clear: it helped a lot before digging into more detailed tutorials. Great work indeed.

Thanks a lot going for an interview tomorrow this explanation saves me lot time in understanding 😆👍🏻

This 13 min video explains one hour lecture. Thank you

Best explanation I’ve ever seen for DBMS

Your teaching is clearer than my lecturer , thanks alot man

Thank you, this is a consize and easy to process introduction!

Just what I was looking for. Excellent tutorial!

Just wanted to thank you my Lecturer did a terrible job explaining these to me , i now have a clear picture of all 3 models thank you

Thank you so much for such a wonderful explanation…. Brief and crisp!

Nice explanation. Thank you, sir😊

Awesome video. Very Explanatory.

Simply the BEST. Thank you!

Thanks finally an English titled video who is actually explained in English.. :) Very well

Very well explained and all the details are clearly described. Subscribed😊

Very helpful, clear and detailed! Thanks a lot.

thanks because it brings clear description from start to end.

Very helpful and informative, Please keep educating people. God Bless.

Well understood. Thanks for the lecture

Nice explanation

Wow.. clear explanation with diagrams.

You did a great job, your explanation is too good thank you!!

So here's what I understand, I wanna know if it's correct please: Conceptual data models are like the general overview of how the actual data model should look like, like a sketch for a painting or an architecture. Logical data models are idk, more complex? They basically have key and non-key attributes to the entities now and primary and foreign keys can be used. It's still easy to understand, but is harder to update because it's more complex. Physical's simply like, full-fledged. Entities are called tables, attributes columns, it's even harder to understand and really difficult to change.

Excellent explanation, very easy to understand. Thank You.

Commendable explanation..please upload more videos ...of business intelligence

This was very detailed yet very simple explanation. Thanks a lot Sir.

Simple and clear. Thank you!

very helpul and conceptual video. Thanks a lot buddy.

such a clear description, thanks

Excellent explanation. Short, sweet, and to the point while covering all the essentials to data modeling. Thx you😉

excellent video! thank you very much!

Great Presentation , covers all the important points, many thanks

Without doubt, the best tutorial, even with my experience that was refreshing!

Thank you for this great explanation!

This is really great for revision purposes 😅 short and to the point. 👍

Big Thank you sir for such a wonderful explantion......waiting for more video wid business cases

thnx vry much u explained it all well

Very well explained. Thanks !!

Wonderfull explanation Sir. Thank you very much for making the video.

Very nice explained 😌😌 thanks for this buddy.

Insightful ❤

Very informative thanks

Thanks a lot!! I'm not from science background, but still could understand clearly!!

very simply explained and easy to understand. Thanks !!

I appreciate your efforts to prepare such a wonderful video!

Very clear explanation of the topic...really appreciate it.

Thank you very much! It's very useful :)

You saved me a lot of time man, thanks

Very nicely explained . Superbbb :)

Many thanks man This helped me !

this is the best explanation ever. You solve my problem

It helped me a lot! Thanks!

Very useful video. Thanks for your efforts in sharing this knowledge.

Thank you so much. This was very helpful.

Absolutely brilliant video. Thank you sir! 🙏

you explained it in a great and plain way. Thanks.

Great explanation, thank you very much.

Excellent video

Very good presentation and tips. Thanks for sharing this, it is very helpful indeed.

Thank you the explanation is good enough and clear.

Thank you for this!

Cleared my doubt. Excellent video.

Thanks! Very helpful for a beginner :D

Clear & Concise. Great job & TQ!!

Thanks very insightful

Very helpful and appreciated !!!

very good and very well explained in clear english

Very clear, thank you

Excellent, thank you

Very well explained.. Good way of explaining as well.. Great video 👍

Sir, Please make a video to describe about database. Where student don't want to learn any of database technologies like My SQL, Oracle, MongoDB, Hadoop, Google's or Amazon's Cloud Databases and so on. Please make a video where students want to learn in detail about. 1. Concepts. 2. Terminologies. 3. Types of databases (Relational, Non Relational, SQL, NoSQL etc.). 4. Data types supported by various database technologies. 5. Compatibility of different database technologies with different mainstream programming languages (Like Python, Java, PHP etc.) for developing backend of web applications. 6. Working of different types of database technologies. 7. How to calculate resources required. 8. How to calculate costs for different types of database technologies for the given requirement.