What is Data Modelling? Beginner's Guide to Data Models and Data Modelling

In this video I'll give you a full introduction to what data modelling is, what it's used for, why it's important, and what tools you can use to implement it!

[jessegarris]

Two of my college classes explained in 19 minutes. Excellent refresher and general explanation 👍

[florsco]

Thank you Data Guy! first video I've seen from you and it was so clear and simple. I have nothing to do with databases and I've followed every stage of your explanation easily. Thank you for bring this kind of material to us!

[IfeanyiNdu]

Awesome video you have here, I will be sharing this with my team👏🏽. Slight improvement that could be applied is taking away customerID from payment table (data redundancy) as the customer can be traced back using their orderID.

[jeffrey]

Great! video Captain America with eye glasses 🤓 Love Data Dog 😍

[carolinemotsatsi]

Thank you for this👌👌. Does anyone know of any relational data modeling exercises resources that have solutions? I want this relational modeling business to be intuitive. Thanks.

[billyasterino]

Thanks for the video. Would love to see one on ways to set up Airflow in AWS

[laureneze]

Thank you so much.🎉 Could you consider speaking a bit slower for your foreign listeners pls 😊

[JosePayano]

Your image sometimes cover parts of the models you are explaining. You should consider not staying up on screen for the whole video or just getting off the screen entirely. You might chose to pop up at the beginning or end…

[OrcaChess]

Insightful video! Thanks - What’s your verdict on Data Vault as data model?

[annas]

For OrderLine Entity LineID should be PK and OrderID should be FK

[byqlmyu]

Please make videoes on SCD or CDC?it will be helpful for all DE

[marlinhicks]

I’m new to being data focused but not new to tech. Is data modeling just like diagramming with uml?

[evhwolfgang]

This looks a whole lot like taking JSON/arrays from a website and putting it in MySQL with PHP scripts. Hopefully I have a leg up with that experience...

[jonnybrown]

I have an interview for a software consultancy firm in the UK. My task I will be doing is "data modelling for a hypothetical system" how can I prep for this? I'm a full stack developer but not dealt with data modelling yet :)

[edwinfcapidos]

In the OrderLine, should the OrderID be the FK and LineID the PK?