4.10 Decomposition into 3NF Third Normal Form

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For complete DBMS, check out this video: kzbin.info/www/bejne/j4PRm3qbhsemfrM

[@shiulisinha8901]

Sir you are terrific... You are best teacher in youtube i have come across...sir you are doing great job...your style of explaining and making things simple and easier is commendable. Usually i dont put comments in youtube but i couldnt resist in your case. Sir where are you from and where do you teach?

[@aishmash5325]

You are the Best Sir!!!! Just amazing ! This is really really very noble task you are doing.thankyou so much.

[@satyamkumar-lf8bw]

One of best teacher I have seen on You tube.fabulous sir.❤

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🔥Complete DBMS by Sanchit Sir: tiny.cc/DBMS_Sanchitsir_kg 🔥🔥All Computer Science Subjects by Sanchit Sir: tiny.cc/CSbundle_dbms_kg

[@rewakher8316]

Thank your sir, for your wonderful explanation 😀😀 You explain the topic in depth and make the topic easily understandable

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You are most welcome dear student, keep learning & supporting !! Do visit our website www.knowledgegate.in for more courses & contents !!

[@shrutikaoswal8048]

Instead of checking further can we directly say , Every function dependency is divided into separate table and if key is not part of this then create 1 more table for key..?? Is it a correct?

[@SadiqKhan-qn1sf]

Great sir.. Mai nai boht videos dakey hai but jis trha ap dill sy parhatay ho. Is trha koyi nhi parhata 💜 Thanks my all concepts have been cleared

[@priyangsagar3140]

Tomorrow is my exam and i'am watching this playlist on 2X and now i can feel the confidence.

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All the best👍

[@akshitbidang9654]

Us bhai us

[@animeshmishra4282]

I will watch the whole advt . Thats the only tribute i can pay to him.

[@vinitagupta3648]

If there is more than one candidate key than how to normalize 2 and 3 normal form. Plz Plz upload one lecture also.

[@OmitA25]

very nice explanation..............Sir plz start uploading videos on COA..

[@saiyamjain1285]

Hello, I have a question here. How do we deal with a case where there is a circular dependency that means in R(ABCD) we have given that A->B, B->C, C->D, D->A....how do we find the candidate key in that relation and then convert it further into normal forms?

[@hardikajmani5088]

Great videos! Just reduce the number of ads, or organize them in a little better way as it breaks the concentration while watching.

[@imprakrut]

Do you also have an exam tomorrow?

[@MN-df2br]

Washing Powder NIRMAAA!!!

[@vishalkrishna6344]

Patel Miraj hello

[@joshking9537]

yep

[@souravraychaudhuri6600]

I have an exam in an hour xD

[@ankit7941]

YYY

[@ajitsafeway]

Neta ke ghar me ek aur neta 😂😂

[@adityakrishna11]

nepotism

[@SHASHANKRUSTAGII]

🤣laude lag gye neta ke!

[@raviashwin1157]

@@adityakrishna11 😂

[@pasitopasito1967]

😀😁😁😀😀😁😀

[@niloydas5018]

Most recommended video for normalization. All the confusion has just vanished.

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Glad to hear that Niloy, thank you for watching, keep learning & stay with us for more content.

[@nc8002]

excellent video with really good examples and explanation. love it sir

[@pratikbal-x9e]

sir in example no 4, we found that AB ->C proves that R is not in 3NF, so we decomposed AB ->C i.e. R1(ABCI) but sir here A is a prime attribute and it finds I which is a non prime attribute so there should be no problem but sir you have again decomposed R1 to R11 and R12. Why so sir?

[@PetBuddies]

best... Hats off... Love from Bangladesh

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Thanks a lot dear ❤️ Keep learning & supporting ! Stay connected for more amazing videos & contents 👍😊

[@souravmukherjee7508]

Best explanation sir, it will helps me a lot in fourtcoming exam .Thank you sir

[@abdeali1301]

Thank-you sir for amazing video !!! Sir Ek Doubt Tha ki Question me Jitni bhi Dependecies di hai hum usika hi Table Create Kar dete hai to uske Bad Ye sab step karne ki to Zaroorat hi nahi hai. To ham ye step kyu kar rahe hai?

[@ektabansal5332]

Bookish language had made these topics so much difficult, thanks a lot sir for these videos

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You are most welcome dear @Ekta😍 Keep learning & stay connected for more amazing videos👍

[@hamzajee3401]

Sir you are the best teacher

[@itsmayank-08]

Helped a lot while doing assignment during Quarantine

[@rajasaha1997]

India needs teacher like you sir.Thanks a lot

[@kartickchandramanna267]

Excellent lecture 👍 Thank you sir 🙏❤️

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Most welcome dear 😍 keep learning & supporting ! Do visit our website www.knowledgegate.in for more amazing courses & contents 👍😊

[@alihaiderabbas3508]

I don't know in which manner I should say you THANKS ..you are just amazing .

[@Ankit-we8ym]

sir can you please teach how to check dependency preserving and lossy/lossless nature of decomposition

[@pratikshachauhan4152]

Sir please make a vedio in which we have more than one candidate key

[@jatinbhatoya8420]

exceptional teaching skills

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Thank you so much dear Jatin, keep learning & supporting, stay tuned ! You can also visit our website www.knowledgegate.in for more amazing contents & courses !

[@parthpatel.15]

Sir, Can you solve the following question to decompose the table into first 2NF and then 3NF? Given, the relation: R (a, b, c, d, e, f, g, h, i, j, k, f) and the FDs: a -> c, d, e; a, b, g, h -> i, j, k, f; j, i, g, h -> f, a, b. Decompose the given relation first into 2NF and then 3NF. It will be of great help if you help me in this sir.

[@AhamedKabeer-wn1jb]

Thank you Sir..Well explained..

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You are welcome Ahamed.. Keep learning and supporting !! Do visit our website www.knowledgegate.in for more courses and contents !!

[@pranjalgoyal6747]

The beauty of the video increases if you watch in 1.75x

[@shashwatmahodaya9695]

2x bruh!!!

[@bhavnagoswami1273]

Bhot ache dost ho aap sir🥰

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Thanks a lot Bhavna, Keep learning and supporting !! Do visit our website www.knowledgegate.in for more courses and contents !!

[@ebteshamkhalidansari8833]

AB->CD,CD->EF,BC->DEF,D->B,CE->F CONVERT THIS 2NF IN 3NF sir plz reply for this question

[@MuhammadJunaid-zv3kk]

*Sir in questions ma to apny simple ye btaya hua hai k A--->B OR AD--->E but sir actual problem hi to yahi ha hamin samjh ni ati k konsa attribute kis ko determine kr rha ha normal questions ma ye ni likha hota k ye attribute isko determine kr rha yahi chiz find krni parti ha so kindly koi method btayin jis sa hamin asani ho k ye attribute isko determine kr rha ye ni kr rha etc....

[@AashishKumar-vb3qb]

sir aap toh jaadoogar hoo !!

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😂😂😂🙏🙏

[@AashishKumar-vb3qb]

@@KNOWLEDGEGATE_kg thanks for reply 🙏🙏🙏

[@Shailesh_Pratap_Singh]

Well done sir ...your concepts are awesome ..✌✌

[@ipatelriya]

Awesome explanation sir🙌

[@saisrikar7987]

your videos are great sir!! Thanks. Sir,By the way, Where do you teach.?

[@akashsharma9474]

unacademy

[@supriyakanwar9990]

thanks ....really helpful in understanding concepts and solving questions...

[@iamgroot2810]

Brilliant explanation

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[@PandeyJii9632]

Gajab teacher !!

[@shaillymegha2840]

Thanku sir..we love you knowledge gate

[@PANKAJKUMAR-fe8zn]

Thank you a lot .....a ton of thank you sir......because of you, in this theoretical paper....i have very much confidence now.....

[@devanshgupta5728]

exam me shortcut nhi allow hota he

[@chrishhemsworth2682]

Great sir Now all doubts are cleared 🙏🙏🙏

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Excellent dear👏Keep learning & stay connected for more content👍

[@mitrajsinhjadeja2999]

you are a saviour

[@HimanshuSingh-zs3mk]

Really Great Explanation Sir ,Thank you so much Sir.

[@only_rashed]

Understanding 🖤

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[@margipatel8489]

Best explanation 👍

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[@rahulshaw7457]

Gajabbbbbbbbbb 😁😁😁😁😁😁😁😁😁😁 maja AAA Gaya sir ji

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Thanks a lot Rahul.. Keep learning and supporting. Do visit our website www.knowledgegate.in for more courses and contents.

[@anweshadatta7670]

Thank you sir .you are the best..😊

[@rasid_khan]

Great teacher❤❤

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Thank you so much friend.. keep following and watching videos..

[@nimmalavishnu3044]

Great Explaination sir,God Bless you sir

[@NishaSharma-nd1dk]

Thanks sir g

[@pritigupta4413]

Outstanding performance sir ji

[@harshitharshit6448]

3rd example me BD and DE Me decompose kiya gya but B Part of cadidate key and prime attribute ek non prime ko identify karra to ye toh 2nf me hi nai hai kaise 3nf me ho gya

[@chandanyadava2228]

Consider a relation R(A,B,C,D,E) with set F= { A→CD, C→B,B→AE} What are the prime attributes of this Relation and Decompose the given relation in 3NF 🙏 sir solve this problem

[@asifiqbalkhan5601]

A,B,C are candidate keys and A,B,C are prime atributes this relation dont have any partial or transitive dependancy so, it is in 3NF

[@dhritimanroyghatak2408]

@KNOWLEDGE GATE Sir Beta kabhi bhi prime atribute kaise hoga kyonkin wo khud alpha se nikala jaa skta h ye baat mujhe smjh nhi ayi kya aap please alaborate karenge.Thank you

[@farihazultana]

Bahut pasand ai hai

[@muhammadsafiullah8428]

Sir you are great. 💖

[@rpkumawat8879]

Lucid and vivid explanation

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Thank you my friend.. Thank you for following the videos regularly and providing your valuable feedback..

[@anujsaini8332]

You r the best teacher Thanku so much sir Thanks 🙏 Sir

[@sayansahu7389]

well done sir

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Thank you @Sayan❤ Keep learning & supporting! Stay connected for more amazing contents & videos 👍

[@anusreenandy9251]

Your explanations are the best

[@chetanraj1950]

Awesome explanation sir.

[@vinayakmishra2365]

Sir if humne 3nf me decompose krne waqt ek relation me candidate key ko Bhi rakhte but sir if agar aisa relation mile jaha par ek hi letter ki ck ho tb kya uss suppose only 'A' toh waha pe relation kese bnega

[@parths.1903]

R22 Mei koi bhi candidate key ka attribute nahi hai sir ,,, then won't it be lossy ? ??

[@sketchesbyMg]

I have a doubt.If relation is given A->DE and D is a prime attribute but E is not and A is not a superkey so can I say that this relation is valid for 3 normal form??

[@oliganguly2051]

U r amazing sir..ur videos are really helpful

[@arjunkhanna1803]

21:11 just to convert a relationship table to 3NF we need 6 table so will it take more space in database?? Increase the complexity??

[@nkag545]

Thanks a lot!

[@KNOWLEDGEGATE_kg]

Most welcome dear❤ Keep learning & supporting! Stay connected for more amazing videos & contents 👍

[@nikkymishra6518]

Best lecture sir

[@MohammedAli-qm2bg]

How do we decompose this relation? R(ABCD) F = {AB → C; BCD → A; D → A; B → C} The candidate key is BD.

[@srs_queen]

Sir can we combine the tables R11 and R4 in last 4th example ? 20:39

[@sahilvishwakarma6848]

Sir in question no 4 . There is mistake because sir here in R1 we decompose it but sir why because here candidate key is A ,so already the table is in 3 NF so why we decompose it into R11 and R12

[@mohammadadnaanzakee3302]

You might find confusing at first, but believe me you won't find simpler explanation than this!!

[@nathm1526]

Best explanation ever!

[@SoniKumari-zq5hd]

Thanku Sir for such a important video😊

[@riyabansal8835]

amazing sir

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Thanks! Keep learning & stay connected for more amazing contents👍😊 You can also check out our course for all Computer Science subjects, sharing the link below: www.knowledgegate.in/learn/Zero-to-Hero-in-Computer-Science

[@arunavasaha7051]

in 2nd and 3rd example why we are not creating a separate relation with only keys i.e. R(AB) when AB is a candidate key.. unlike 1st and previous examples?

[@aryanarya72]

Should be created

[@sagarmehla3781]

Nice explnaition

[@himanshi9685]

Very good explanation sir tq sir

[@vinitagupta3648]

SIR VERY GOOD LECTURE SIR

[@gajendramajhi1688]

Thank you so much sir....😊😊😊😊😊

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You're welcome, Gajendra. Keep learning, supporting & stay connected for more content👍

[@narendraparmar1631]

Very precise lecture Thanks sir 😆

[@sumeetkumar298]

Thank you so much sir

[@sachinduhan3022]

you are god. thank you for such wonderful explanation

[@chetankumar1487]

Kya ye method se semester exam me solve kr skte h????....jldi bta dijye...mera exam 30 may ko h

[@shivmohanagarwal1746]

Best explanation sir

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Thanks a lot, Shiv. Keep learning, supporting & stay connected for more content👍

[@zeeshanmohnavi]

Can't resist giving feedback after watching his videos on FD(Part 3.1) till 3NF(Part 4.8). - His videos are okay to understand the concepts intuitively but will be of little help if you solely rely on it for GATE. Reading a standard book or watching lectures of some reputed colleges (as available on NPTEL/Stanford/MIT) is a must to get the technical jargon and to get the concepts right. - Mr. Sanchit Jain deliberately took examples involving a single candidate key, while solving problems on 3NF, and pretended that this is all that will be asked in GATE/NET. This will give the candidates a sense of "complete" understanding when, in fact, they just learned and practiced the skills to solve a subset of the possible questions. This series was recommended to me by an accomplice, but I won't recommend it if you want to appear for GATE. Supplementing these videos with a reference text might prove helpful. **Views are personal**

[@meghnajain7889]

i agree....but it gives a basic understanding for the beginners so that it becomes quite easy to learn further....

[@everyone2905]

Neta Neta har Koi kehta teesri manzil pe rehta .... -Jagdish Bhagat

[@flywithrohan05]

In 1st Example, R12 mei, B candidate key kaise Bana? Can you please clear my doubt , tomorrow I'm having my exam... thanks sir

[@askariaziz4163]

thanks

[@richasharma5486]

Sir plzz make a video on query writing bye given schema based qestion

[@RaviSingh-yf6jd]

Thanks sir but also upload computer network series please thanks again

[@rajveerchoudhary5307]

Great sir 👍

[@rohanm2793]

Sir, plzz plzz make videos on 4th normal form also

[@gouravsharma1952]

sir pls upload videos on lossless join and dependency preserving

[@mohordas5557]

Thank you so much sir 🤍

[@KNOWLEDGEGATE_kg]

You're welcome. Keep learning, supporting & stay connected for more content👍