Complete guide to Database Normalization in SQL
ฝัง
- เผยแพร่เมื่อ 13 มิ.ย. 2024
- This is a complete guide for anyone to understand Database Normalization in SQL. I will not just explain the Normalization concepts but also show you step by step process of normalizing a de-normalized dataset taken from Kaggle by following the different levels of normalization (Normal forms).
The video is divided into 3 sections:
In the first section, I will explain the basic concepts of normalization and the different levels of normalization (different normal forms), and some key points you need to know to better understand normalization.
In the second section, I will explain all the above concepts in detail with proper examples. We shall use a de-normalized dataset taken from Kaggle for illustration purposes. We shall follow different normal forms to normalize the Kaggle dataset which should give a complete understanding of how to normalize any dataset.
Finally, in the third and last section, I shall explain the different anomalies that exist in a de-normalized dataset such as insertion, updation, and deletion anomalies. We shall also see how a normalized database can overcome these anomalies.
Timestamp:
00:00 Intro
00:46 1. What is Normalization
03:12 Different levels of Normalization
05:14 2. Step-by-Step Normalizing a dataset
07:35 First Normal Form (1NF)
12:44 Second Normal Form (2NF)
25:59 Third Normal Form (3NF)
32:42 3. Different Anomalies (Insertion, Updation, Deletion Anomalies)
37:10 Deletion Anomalies
39:08 Updation Anomalies
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THANK YOU,
Thoufiq
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There is no doubt, for me you are the best Relational Database Management System trainer. The way you explain really makes me understand. Thanks!
thanks buddy, glad you’ve liked my content
@@techTFQ Hi any dedicated course is there .... on sql performance and sql admin in Udemy or anywhere
I will make my company to buy🙏🔥
Very clearly explained each and every point
just "WOW". I have been struggling to understand normalization for my db class. You used a great visual example and I love how you copied the table from 1 form to the next so we could see the process building upon itself as we get to the higher levels of normalization. You just earned a sub and like. Thanks so much.
I have learned SQL from different platforms but never understood this concept but for the first time i felt it was so easy. Thankyou so much sir for such great videos.
Best SQL trainer .. you teach the thought process as well which goes a long way! Thank you for all the great work.
as soon as I started my journey with sql databases I came across Ur channel
every film proves that it was super good choice
another great content
THX
Clear and straightforward explanation, all concept cleared on Normalization, Thank you so much buddy
Best way of explaining NF's,First time I understood the concepts clearly.
Till now I read many post articles but unable to understand but from your video I got proper understanding.
On TH-cam you and Ankit bansal content are like breaking hard problems and explaining in simple manner
This is the best video on internet which talks about this topic so perfectly!!!!!!!!!!!!!!!!!!!!! you forced me to comment!!!!!!!!!!!!!!!!!!!!! you are the best out there !!!
I love your way of explanation and your SQL series will give a clear idea about basic to advanced levels of SQL skills. Thanks!❤
Hands Down , Best video on normalization in entire internet.
Great explanation Thoufiq. Always a pleasure to watch your videos. I really like the way you channelize your thoughts in an easily comprehensible manner. The speed, clarity and content of your videos are absolutely perfect. Have watched other videos of yours and same opinion goes for them too. Coming to this one, i guess you knowingly kept the sales info till the 3rd step to explain transitive dependency, though you could've eliminated it at the same time you normalized Order/Prod/Cust info, since sales, just like customer, was also absolutely independent of candidate keys. Keep up the good work
One of the most difficult concept explained in the best way possible👌👏🏻 As always a very useful video🙌🏻 No doubt you’re the best SQL trainer out there.
Thank you bro 😎
One of the best video on Normalization I have ever seen... Thank you for this beautiful explanation I got clarification on Normalization in an unequivocal manner.!!!!
Brief, solid, and easy to understand. thumbs up!
My Goddd!!!!! What an easy explanation of such complex subjects. Great work!!!
I used to think Normalization as a complex concept. But till the point, I reached in video yet, I am finding it very simple because of your explaining style. Thanks
I have to say that I have made 3 courses with modules about data modeling and schemas, and this is the first time that I'm realling understanding how to build an ER Diagram.
Many thanks for your explanation and all the best
No doubt, you are the best sql trainer. After watching your video my all doubts about normalisation is cleared. Never miss your single video. Because of you I got to know lots of concepts about sql. Thank you Sir❤️.
Very clearly explained. My doubts got clear. Thanks for providing valuable content.
No one explained this like you do....Thank you!
Very well explained! This concept couldn't be made simpler. Thank you!!
Thanks for making it crystal clear! Satisfied!
I love the way of your teaching. Crystal clear explanation.. Thank you Toufiq...
Great video. Working through the example database helps a lot.
I was very confused in this concept and have seen many videos and no one explained the way you explained. You are awesome. Expecting more videos related to SQL. Thank you
"Mind is officially blown! 🤯 Thanks for simplifying Normalization in DBMS with real-world examples. You're a rockstar teacher! 🌟 #DBMSSimplified"
For those who are confused on transitive dependency in 3NF, if we just look at the output of 2NF, Order_ID -> Order Number and Order number -> Sales contact first name and Order number -> Sale contact second name hence there is a transitive dependency. It was not flagged in 2NF as Order ID -> Sales contact first name and Order Id -> Sales contact second name, hence these are completely dependent on pk as well.
bravo! Very good examples and great/neat presentation! I have been struggling with this topic for quite sometime and now I can put it to rest. Thank you
Absolutley brilliant. I understood the concept immediately. You are an excellent trainer.
Glad it was helpful
Amazing explanation and clarity. Thank you!
Excellent Explanation, It Cleared every doubt in Normalization. Thanks
too good sir,been searching in various other channels for this content but I could not understand anything,but your content and explaination was too good that i can understand by just a single watch
Too useful and seemed a relatable example rather than just reading out the definitions like other yt videos do when it comes to SQL normalisation topic...kudos 🏆
Thanks buddy, glad you like it
I had no idea about what is 1NF, 2NF, or anything related to it. But after watching this video I get the idea now. And also why is it good to have different tables, and what kind of anomalies we would be facing if not done. Thanks buddy! Really a very good tutorial. Very clear and detailed explanation.
I found the best tutor to learn the Database and the it's content is very clear to understand. Thanks for the video.
Glad you liked the content
Thank you for this video. After watching it, I understand it now. You explained it well.
Brilliant, had this topic way back in Uni, but your explanation is 100x better. Great for refreshing my knowledge.
Great to hear
This was a lot of fun and very helpful! You did an excellent job! Liked and subscribed
Finally today I learnt normalisation in easy way. Thanks a lot 😊
I am really enjoying the video, great and comprehensive content. Thumbs up !!
Nice explanation sir I have just started to learn SQL u have cleared the way how to learn in the proper manner
Very informative tutorial. All my concepts are clear now. Keep it up ❤
Amazing video, I completely got entire concept in 1 video
All concepts Explained in really simple ,clear and crisp way.👍
Thank you 🙏🏼
The best explanation ever on concept of Normalization. The concept is perfectly understood. kudos!
Great to hear that
You are truly amazing sir, the way you describe each concept make it so clear and easy .... normalization is the topic which i always get to confuse but your explanation cleared all my doubts... thanks again
Your a master of RDBS concepts
You’re the best SQL trainer .you teach the thought process ,I think Normalization is a complex concept but after watching your video i feel it will be easy !!!! thank you very much for making it so easy to understand
You're welcome ☺️
Hats off sir ❤
Now my concepts are crystal clear
Normalization was topic that used to confuse me very time i saw so much content regarding NFs but getting confused more n more but now after watching ur video i am absolutely clear abut it ...
Definitely this is one of the best best best best video from an organisation perspective.
best video so far on normalization.
Great video, Thoufiq. Very clear explanations
Thank you for making everything crystel clear.
You are really great sir, you explained this complex concept in easiest way...
Amazed by your explanation😊. Thank you. Very usefull.
That is wonderfull explanation, thank you so much sir.
You are the best teacher.your all sql videos are best for learning. Your explanation throughout the videos is mindblowing. please make more videos on Sql
You are doing a great job brother, most crystal clear explanation i have found on this topic normalisation, you are making SQL learning a cake walk for all the learners, kudos to you
Thank you Das .. so glad this helped
sir an awesome explanation just like one video whole concept of normalization cleared
Best explanation I've seen, thank you 🙏
Welcome:)
Thank You so much
the way of your teaching is excellent sir
Each time you post a video, I'd always feel that this is the session tailor made for me. This video goes into one of many straight-in and simple to grasp conceptual videos of yours @Thoufiq. If there's anything I can ask, please make videos with mini projects on topics like normalization on complex data. Once again, thanks for sharing such a valuable content!
Thank you Satya .. much appreciated.. and noted on the suggestion
@@techTFQ I would be eagerly looking for it :-) every time, there is a video from you, it feels like a obligation for me to watch it :-) as I don't want to miss a valuable lesson that you teach. May god bless you and, keep rocking brother.
Thank you Siva.. very kind of you
Sir this is what I'm searching for from last couple of days .... Thank you so much 🙏🙏
Your welcome buddy
😮 You are great trainer 😀 Is reason to follow you sir
Well curated and properly explained 👍
Thank you so much Toufiq! It is beautifully explained, thoroughly understood..
Great job! Thanks for this extremely useful video!
Toufiq bro, I can say that you are the gem 💎
For teaching the sql concepts in the most understandable way.
I'm working as plsql developer from 2 years without knowing anything about normalization.
Thank you bhai for very informative contents on sql ❤.
Awesome, can't wait to watch! thank you!
Ur way of explaining things are so interesting. Keep it up. Love ur way of teaching. GBU
That is very easy and well explained to understand for every one. Thank you Sir
Thanks for such a quality content!
Got much value as usual.. Thank for this sir
Best normalisation explanation sir
Thank you ❤
Your videos are informative!
super clear omg! you saved me, thank you so much!!
i finally understood normalization. subscribed
Real life example loved it..
Thank you, thank you so much for knowledge sharing with us in good understanding manner.
I Love your content and your way of explanation too.
Very well explained. Thanks a lot for such valuable content 😀
This is a great video with a very clear explanation. Thanks a lot!👏 Please try to make a video on data modelling and data warehousing. 🙏
thank you for providing valuable information
No one can explain it better than you sir ... thank you very much for making it so easy to understand 🙏♥
Thanks buddy, much appreciated
Very well explained sir. Thank you for the information
Very good I loved the video. The colored data was helpful to understand. Keep your data coloured it helps. And your clear speaking also helps.
Great Explanation!
you are the gem of a teacher. Thanks
Welcome:)
This helps me to understand the concept clearly.Thank you so much sir!
Glad this helped
Thanks a lot for making me understand
very well explained thanks a lot
Thanks bro nice explanation on Normalisation.
Keep up the good work , nice explanation. It helps.
Thanks for making this video. I was searching for this type of concept. Finally I came across your content.
Glad it was helpful
Just awesome as always ❤, Appreciate the knowledge share
Superb explanation ❤
Bro burst my brain, you're too good abeg, I swr. After you na you.
Great Explanation Bro
You Simply nailed 👍. Simple and crisp. It would be have been nice if you could explain BCNF, 4NF and 5 NF. Your explanation damn good.