What is Normalization in SQL? | Database Normalization Forms - 1NF, 2NF, 3NF, BCNF | Edureka

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[@DavidEspinosa21]

1NF: 4:16 2NF: 5:37 3NF: 7:37 BCNF: 9:52

[@alexandrospanag]

jesus christ you took 15 minutes when my teacher took more than 6 hours and i still hadnt learned anything from! You are a genius sir thank you for the video!

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[@shatakshipandey3942]

When my professor was teaching I couldn't understand what was even the need for normalisation let alone itself but u made it clear in the very start. Now my all doubts are clear regarding this. Grateful that I came through this video. Helped alot 👍

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[@bhanupriya2244]

I had left only 1hr for xam I jst saw this video twice nd written the same question, the explanation was very clear can understand easily

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[@Exodus0791]

I have a textbook that 'explains' this subject. That book could have been written in hieroglyphs and it would make more sense to me. Thank you so much for the very clear explanation! Helps me a lot!

[@mahimsd7645]

Congratulations for 1 million subscribers ...

[@haniffaris8917]

But wasn't the table in the 3NF example not yet in 2NF? Isn't Subject (Non-prime attribute) is partially dependent on Subject Id (candidate key)?

[@kratikakothari6848]

Great explanation in jus 13 minutes 🙌👏 Understood the whole concept

[@aditya_k43]

Thank you so much sir for the explanation 🙏 understood all of the nodmalization forms with your explanation.

[@shaikmohammed9981]

Good explanation👏🏻👏🏻👏🏻👏🏻

[@edurekaIN]

Thank you 😊 Glad it was helpful!!

[@maryamfatima5882]

very clean and clear session

[@edurekaIN]

Glad you think so! Keep learning with us..

[@navnathbhure3789]

One of the best lecture video i have ever watched ..

[@edurekaIN]

Glad it helped

[@vaishnaviv7113]

It's my exam today and that was really helpful thank you very much

[@afsardesign]

Really it is very helpful for me to get clarity about this topic for my upcoming exam Thanks a lot for giving us knowledge 👍👍👏

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[@mudassiribad2910]

Thank you sir very grateful explanation in simple method very helpful for me by these explanation i had cleared all the doubts regarding this concept

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[@sneharay60]

The video was really very helpful to me. It's because of the presence of teachers like you that students can understand the topics instantly especially those who don't have tutors

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[@djgulston]

What a man! Brilliant explanation! Thank you for this!

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[@burcukaradag2975]

Thank you, you are awesome this is the fifth video that I ve been watching for normalizations, I just understood with your video, thank you very much

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[@dakaninongpluh4556]

thank you sir ,very simple and clear explanation

[@edurekaIN]

You're welcome 😊 Glad it was helpful!!! Keep learning with us..

[@Vishnu-ix2di]

Thanx for the video. I got clarity on this topic by this video.

[@edurekaIN]

You're most welcome :) Glad it was helpful !!

[@andrewkoh9678]

I understand much clearer now, Thank you!!

[@amanbhargavaofficial]

Thank you😊😊😊

[@mayanksoni214]

And this is how I feel in love with the DBMS Subject.

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[@aj7ttt]

when I need to understand some topic, I just search topic name + Edureka ✨

[@edurekaIN]

Hey:) Thank you so much for your sweet words :) Really means a lot ! Glad to know that our content/courses is making you learn better :) Our team is striving hard to give the best content. Keep learning with us -Team Edureka :) Don't forget to like the video and share it with maximum people:) Do subscribe the channel:)

[@anexusthanatos4021]

Great video!! 👍

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Thanks for the visit

[@mumbaikachallenge5526]

Superb simple and short!❤️

[@edurekaIN]

Thank you 🙂

[@pavanputluru3417]

What is the difference between 2nd and 3rd? By looking at the examples in the video both looks same. Please let me know thanks

[@edurekaIN]

To make sure that the database must in 2NF, the database should be 1NF and should also have a single-column primary key. Also, to make sure that the database must in 3NF, the database should be in 2NF and must not have any transitive functional dependencies. If you want an example on Normalization, refer to the following article:www.edureka.co/blog/sql-tutorial/#normalization

[@lorenzoliswaniso591]

Thanks🙏🏽

[@karrisateesh7938]

very good explanation.

[@edurekaIN]

Glad you think so!

[@dhaneshpt8641]

Thank you...

[@maneeshapathipati2084]

Thank u sir it's very ...nice

[@edurekaIN]

Most welcome 😊 Glad it was helpful!

[@alvarobusquets]

Edureka is the best school 👍

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[@jeevitham205]

Clear explanation is super Sir. We need more concept i.e. about keys db commands. How to write queries and also 4nf...

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[@saltech2024]

Great explanation!! This may come in handy and clearly understood the concept when you've got a project at hand

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[@himanshupande3707]

awesome explanation...clear and precise..

[@pranavwagh9350]

what is difference between 2NF and BCNF ?

[@delanocripps4339]

Idea!! Keep going bro

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[@kapilkarki1696]

Thank you for this beautiful and clear explanation bro

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[@sarmmadd]

vv good. explained ccoly. aprreciate it boss.

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[@audiblealchemy27]

My exams tommorow, this video really helped alot.

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[@mahesh97413]

Very Nice explanation tq.

[@hopeislife1651]

Understood sir, thank you

[@binoyaravind1025]

Great session with examples

[@edurekaIN]

Glad you liked it!

[@jishajustin9523]

Good explanation. I got it.

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[@franzbiberkopf9179]

Thank you very much for this from Rome.

[@flipflop5189]

very informative, thank you for posting this!

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[@livefootballmondiale2302]

very interesting and explicite and easy to understand

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[@MUHAMMADOWAIS-u9j]

Very nice.

[@matthewdodson9422]

THANK YOU for the concise and clear examples!

[@edurekaIN]

Glad it was helpful!

[@nvkchannel8201]

thanks Sir...too good

[@sakasalamiabidemi8766]

Exam in one hour 😂😭

[@vidyabukitgar]

Thank you so much sir nice explanation !!

[@Peeves22]

Amazing breakdown of a complex concept - thank you!

[@mohanreddy2404]

I think no one can explain better than you..

[@edurekaIN]

Thank you 😊 Glad it was helpful!

[@pcgmotorsport9299]

Thank you so much, awesome video

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[@azmatkhan3895]

Good explaination Sir...!

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[@arshiya_83]

thank you so much for amazing session sir 🙂

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Most welcome

[@Zed.1836]

this was very helpful thank you for making this!

[@sajidmanzar]

What about 4NF and 5NF? Are these two NF really needed in real scenario?

[@moulimallina7501]

Tq edureka, tq professor

[@jpoezi]

sir you are a genius

[@marc4594]

Thank you man, you are great!

[@aatmakumar4631]

Nice class

[@complexity8851]

I wish I had this video when I was in College

[@muhammadkamranjaved2424]

Man you are great!!!

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Thank you for your review : ) We are glad that you found our videos /contents useful . We are also trying our best to further fullqfill your requirements and enhance your expirence :) Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )

[@jackieboi321]

Excellent video

[@someshwarans2889]

awesome session sir but i need 4nf and 5nf..

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[@priyanshu6465]

jeez thankyou

[@rohan_btr]

I've exam at 10:30 and now it's 8:55 LOL. Thanks anyways :)

[@anshumanster]

Excellent

[@manojreddy444]

Thanks

[@chodingninjas7415]

best explanation

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We are super happy that Edureka is helping you learn better. Your support means a lot to us and it motivated us to create even better learning content and courses experience for you . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )

[@ayamohammed7655]

Thank you !!

[@sowmyasunkara7136]

Thank You sir.

[@latieshsai5192]

sir pls put a video on cyber forensics sir the branch of future cyber security way that proves to be the correct way

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Thanks for showing interest in Edureka kindly visit the channel for more videos our content creators are eagerly waiting for your suggestion to make new videos on your interest :) DO subscribe for the video update

[@mohdzarrar2793]

Great explanation.

[@anushanelevalli1407]

🙏 srir

[@Abhi_JW999]

Thank you

[@jllnnnl]

difference between 2nd and 3rd normal form

[@edurekaIN]

In 2NF non-prime attributes are allowed to be functionally dependent on non-prime attributes. In 3NF non-prime attributes are only allowed to be functionally dependent on Super key of relation. No partial functional dependency of non-prime attributes are on any proper subset of candidate key is allowed. Hope that solves your query.

[@pavankumarreddykattameddi8385]

Can u please explain bcnf and super key

[@arsha0206]

well explained

[@s.r.chockklingam3991]

What's about 4nf & 5nf

[@vadlapudirajesh4183]

❤❤❤❤❤❤❤

[@ekant1992]

And then come NoSQL DB which difies all these ... tech world is bizzare..

[@edurekaIN]

SQL and NoSQL are used to store different formats of databases. So, both of them stand good against each other and you have to choose which type of database can help you and your organization.

[@shivaprasad-kn3kw]

can a table have two primary keys

[@edurekaIN]

We can have only one Primary Key on a table. Keeping this in consideration and to enforce database normalization (third normal form) databases don't allow multiple primary keys on a table. You can create primary key spanning multiple columns. You can also create a UNIQUE constraint on a NOT NULL column.

[@harshitsrivastava9903]

😇😇

[@prajwalbhat275]

Nice sir

[@kashyapdamodar7338]

I couldn't get past the distraction caused by the instructor pronouncing Data as Deeeta. Seemed like a good tutorial otherwise, so truly its my loss.

[@pravallikamanepalli1061]

Thank you edureka

[@edurekaIN]

You're welcome 😊

[@shravyashetty3115]

thank you so much

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You're welcome 😊 Stay connected with our channel and team :) . Do subscribe the channel for more updates : ) Hit the bell icon to never miss an update from our channel : )

[@017gowthamarajaam8]

thanks a lot

[@badhavaththukaram9538]

good 👍

[@evnraja]

well explained

[@bharatlondhe9995]

Great explanation

[@rainboww1515]

Thank you

[@masadamsahid]

Thanks

[@surya.k7793]

thank you

[@aniketrajapure8251]

Thank You