Lec-25: Third Normal Form in dbms with examples in Hindi | Normalization

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  • čas přidán 2. 08. 2024
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    0:00 - Introduction
    4:16 - Example 1
    6:54 - Example 2
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    #3NF#ThirdNormalForm#DBMS

Komentáře • 558

  • @shadowslayer2248
    @shadowslayer2248 Před 8 měsíci +149

    5 years and still no other playlist could match the quality of Varun Sir's teachings! Hats OFF!!

  • @sreeharims9015
    @sreeharims9015 Před 2 lety +64

    Watched at midnight before exams and scored good marks in Dbms.
    Sir, you are a dronacharya.

  • @dhavallakhani5684
    @dhavallakhani5684 Před 3 lety +206

    This guy is awesome, concept was cleared in first 3 minutes only
    But still he gave 2 examples for better understandings

  • @Sujith0369
    @Sujith0369 Před 3 lety +39

    U got a good grip over Computer Science subject's.Watched all ur videos on computer architecture,Operating system and now DBMS thanks for all the stuff Really ur simply Awesome...

  • @abhishekgm1102
    @abhishekgm1102 Před 4 lety +87

    Hi, 1 day before i really didn't know anything about DBMS, Today i wrote DBMS university exam quite well, I thought DBMS will become Back log, Thanks for your understanding tutorials. I watched all playlish of DBMS. A very big thumbs up for you!!!!!👍👍👍👍👍👍👍👍👍👍👍👍👍👍👌

    • @salmanbehen4384
      @salmanbehen4384 Před 3 lety +20

      Bhai aise nahi karte. Aise kar ke exam to clear kr loge lekin kuch seekh nahi paoge dost. Yaad rakhna bhai.

    • @fizakhan1427
      @fizakhan1427 Před 2 lety

      I'm also applying just like yours strategy for studies since my 1st semester...and it's really workfull...only day befor exams, preparation of the whole sllybus by watching CZcams toturials.

    • @1amcaesar
      @1amcaesar Před rokem

      ​@@salmanbehen4384You cant speak for him, Exam se ek din pehle padhkr pass hona bhi ek skill h...Aksar toppers jo pure zindagi grind krte bethte sirf ek job ke liye - 90% laate aur last night vale 70%..
      Statistically, They are doing much better and have a lot more time to build practical skills which will help them earn money

    • @rishikashyap7839
      @rishikashyap7839 Před 4 měsíci

      2 hour before exam 😅

    • @mahamtahir2590
      @mahamtahir2590 Před měsícem

      How you covered all in one day before 🥲
      Need tips

  • @pintusaini6838
    @pintusaini6838 Před 4 lety +88

    If there was an option of 1000 likes, i would have given you. You rocked.

    • @GateSmashers
      @GateSmashers  Před 4 lety +16

      Thank you so much for your love and support.

    • @pintusaini6838
      @pintusaini6838 Před 4 lety +12

      ​ @Gate Smashers today i caught one mistake in the explanation at 6:12 . if prime attribute determines non-prime then it will not be in 3NF cause it fails to be in 2NF (prime att. is proper subset of CK). ref:Lec 29

    • @geethikaatthi9945
      @geethikaatthi9945 Před 3 lety +4

      @@pintusaini6838 a non prime attribute can be determined by a prime attribute but it can't cause partial dependency hence in the above example roll no is the proper subset and there is no partial dependency so it is in 2NF

    • @dynamicsid8795
      @dynamicsid8795 Před 3 lety +3

      @@pintusaini6838 yes bruh u r right there is a mistake " if prime attribute which is also part of a candidate key either we can say proper subset of candidate key
      Determines non prime attribute then it will create partial dependency and due to partial dependency a normal form can't in 2 NF so not be in 3NF" but sir us saying it will be in 3NF

    • @rahuljoshi4599
      @rahuljoshi4599 Před 2 lety +2

      @@dynamicsid8795 In the above example roll no. is not a proper subset of candidate key (it is a subset), therefore the above relation is in 2 NF.

  • @abhinovize
    @abhinovize Před 3 lety +17

    Jo humare teachers poora semester padhkr samza nai pate, wo exam k ekdin pehel ye videos dhekkr samaj jata hai ;_; ...Big fan sir!
    kal wali exam pass hone ka poora credit ye bhai ko

    • @debasmitamukherjee5501
      @debasmitamukherjee5501 Před 2 měsíci

      tumahare waha teacher padate hai hamare yeha teacher just topic chuke chale jate hai

  • @Swami911
    @Swami911 Před 4 lety +29

    I m not a gate student but I love your way of teaching that’s y I watch your vedio and learn so much things great ...I wish Mai bhi aap jaisi teacher banu....lots of love❤️❤️❤️❤️❤️😍😍😍

    • @adeshmore22
      @adeshmore22 Před rokem +1

      Hi what you're doing nowadays..?

  • @anoopjaiswal7823
    @anoopjaiswal7823 Před 3 lety +10

    Ek hi Dil hai Kitni bar Jeetenge SirJi❤️........🙏

  • @supriyanaik3100
    @supriyanaik3100 Před 3 lety +14

    Thank you so much for doing this great work ... you made this DBMS topic so interesting and easy to understand. This is helping me to clear my IT subject which I failed twice but now I am sure i going to clear it this time. Thanks

  • @amrahmaryam8359
    @amrahmaryam8359 Před 5 lety +4

    Sir your have great teaching skills.. please upload videos of all the topics of net syllabus.... Thank you so much for your sincere effort.

  • @sunnyjain630
    @sunnyjain630 Před 5 lety +5

    This is the best video on normalization forms

  • @techni8320
    @techni8320 Před 4 lety +2

    paji tusi great menu mere teacher toh jaeda tuhadi smjh aundi...really amazing explanation from u sir

  • @AmanKumar-fh6nu
    @AmanKumar-fh6nu Před 9 měsíci +8

    no words to describe your intelligence and way of representation! i got a back and wish i will clear it

  • @jagrutiyewale8891
    @jagrutiyewale8891 Před rokem +4

    Seriously you are amazing teacher ✨✌️I cleared my all dought from your videos........ thanks 😊

  • @golang2351
    @golang2351 Před 3 lety +2

    you are awesome sir..great vision to describe the things easily.

  • @Mr.Streamer01
    @Mr.Streamer01 Před 7 měsíci +14

    whoi is watching this before 1 day of exam LIKE ------->

  • @rajasulal9264
    @rajasulal9264 Před 5 lety +3

    ma na itni videoz dekhi lekin samaj srf in videoz s ahi u r so great tutor.... God bless u Ameen

  • @sajansekhu8785
    @sajansekhu8785 Před 4 lety +43

    thnkk u so much ji..the award of the great teacher goes to u...God bless u always ji...🙏🙏🙏

  • @pratikshadake5470
    @pratikshadake5470 Před 3 lety +3

    🤩Such a excellent teaching skill you have!!!

  • @abhishekroushan9735
    @abhishekroushan9735 Před 3 lety +2

    you really, are doing a great job sir. hats off to you !!!

  • @scoc55vora15
    @scoc55vora15 Před rokem +2

    Amazing ❤️ Explanation with accurate example

  • @shahilyadav4067
    @shahilyadav4067 Před 3 lety +4

    Only one word EPIC!!! The ease with which you teach is remarkable Sir!

  • @vivekmodi3165
    @vivekmodi3165 Před 5 lety +1

    Sir thanks for uploading good and helpful lecture series.
    Pls upload lecture on 4nf and 5nf as soon as possible.

  • @hrutujapawar2311
    @hrutujapawar2311 Před 2 lety +2

    Just one word " Superb" teaching!!🙌🙌

  • @ManojManukonda
    @ManojManukonda Před 4 lety +9

    Thank you, sir I have watched DBMS videos one day before the exam and I had got clear that exam

  • @sarthaktripathy2294
    @sarthaktripathy2294 Před 4 lety +3

    You should explain why it is a problem if there is a non prime attribute determine a non prime attribute. Your explanation will be helpful for us. Thank you sir

  • @AK-us1by
    @AK-us1by Před 2 lety

    Explained a complex topic in a very easy format, Thanks.

  • @03_abhishekchoubey42
    @03_abhishekchoubey42 Před 4 lety +5

    The way you explain sirjii love you from Indore ❤️

  • @AMITGUPTA-hh2re
    @AMITGUPTA-hh2re Před 4 lety

    Very good explanation of the the subject. Really loved it

  • @naveenkumarsahu930
    @naveenkumarsahu930 Před 3 lety +1

    Sir aapne bhut gazab padhaya h jo chote chote points aur trick bataiye h aapne bhut helpful h 🙏

  • @shubhamkushwaha2716
    @shubhamkushwaha2716 Před 5 měsíci +1

    To be honest one of the bst channel what a explanation very clearly

  • @yogitachavan8992
    @yogitachavan8992 Před 3 lety +1

    thank you so much sir..this is very helpful for placement point of view also

  • @priyankvashist4103
    @priyankvashist4103 Před 4 lety

    You are great sir...... you have cleared all my minor doubts too

  • @panditsanjay7762
    @panditsanjay7762 Před 4 lety

    Sir mne phle aapse os pdha tha or fir mne DBMS search Kiya to m ye wish kar rahi thi ki aap ne bnai ho video or tab aapki video dekhi mne to m bhut khush hui ,☺️☺️

  • @shivamsoni1547
    @shivamsoni1547 Před rokem +1

    how peacefully explained ☺️i got all my doubts cleared.

  • @rimshasarwar9592
    @rimshasarwar9592 Před 4 lety +1

    you are the best teacher of the generation.

  • @634_abinashmishra3
    @634_abinashmishra3 Před 4 lety +32

    Sir how come prime attribute presence in LHS of functional dependency meant that the relation will be in 3NF .If so then it will prove partial dependency and thus violating 2NF .I only understood the presence of candidate keys or super key obtained from candidate keys presence in LHS

    • @harrypotter-el4lx
      @harrypotter-el4lx Před 3 lety +1

      prime attribute is in rhs

    • @vinayaksharma-ys3ip
      @vinayaksharma-ys3ip Před 2 lety

      @634_Abinash mishra Bro did you understand it now??

    • @VivekKumar-wl6lc
      @VivekKumar-wl6lc Před 2 lety

      first of all it can't violate 2NF because it has passed the test of 2NF . After testing for 2NF it has come for 3NF.. Here condition of 3NF is only for that F. D which are already in 2Nf.

  • @akSingh_120
    @akSingh_120 Před 3 lety

    Great way of the concept... 👌👍

  • @damiencooper5498
    @damiencooper5498 Před 2 lety +1

    Thanks man my dbms teacher couldnt do it in the whole semester what you did in a few minutes

  • @bulkmotivation705
    @bulkmotivation705 Před 7 měsíci

    EKDAM BADHIYA SIKHYA HAI 💖✨🔥MAZA AAGYA DHANYVAD BEST EXPLANATION ❤

  • @sanjanakulshrestha6374
    @sanjanakulshrestha6374 Před 4 lety +2

    Thank you so much for providing these videos. These are very helpful.

    • @Eknamram
      @Eknamram Před 2 lety

      You give ma notes plz 🙏🙏

  • @zahidjaan1319
    @zahidjaan1319 Před 4 lety

    Outstanding Sir ! Subscribed ...

  • @demon-iv3hv
    @demon-iv3hv Před rokem +3

    This vedio never gets old.. The explanation was lit🗿💥

  • @Flutterdev6391
    @Flutterdev6391 Před 3 lety +1

    Just wow 🔥

  • @nehairinirm7871
    @nehairinirm7871 Před 4 lety

    Sir... Thank you so much..Ur videos..Are very very... Useful..in exams....tq

  • @muhammadhamzamaqsood8576
    @muhammadhamzamaqsood8576 Před 3 lety +4

    great brother!
    the whole playlist is gem.
    thanks for it

  • @sabeenrao6563
    @sabeenrao6563 Před 5 lety +3

    your teaching method is very good sir....` FROM PAKISTAN

  • @amirnawazkhan896
    @amirnawazkhan896 Před 2 lety

    well done sir understandable lecture

  • @prajwal5778
    @prajwal5778 Před 7 měsíci

    GREAT LECTURES SIR SIMPLE AND EASY TO UNDERSTAND KEEP IT UP 😍😍

  • @Urooj21
    @Urooj21 Před 5 lety +2

    Assalam o Alaikum ... I am your regular channel watcher.i am the student of msc(cs).sir please make more vedeos about normalization

  • @shafiqaliaki8953
    @shafiqaliaki8953 Před rokem +2

    Best lecture easily understandable by me

  • @kunalsahay12
    @kunalsahay12 Před 5 lety +10

    In the students table, a NPA(City) is being determined by another NPA(State). Isn't it the violation of first rule and you can conclude that it is not in a 3NF?

  • @anu.s8575
    @anu.s8575 Před 4 lety +3

    sir, u r too smart!

  • @apnastudybuddy8683
    @apnastudybuddy8683 Před 2 lety

    Very well explain all the normalized forms ,great efforts, thank you sir 🙏

  • @rishavkumar2681
    @rishavkumar2681 Před 2 lety +1

    Thankyou sir to give best knowledge and clear the concept thanks alots sir....

  • @dheerajverma2909
    @dheerajverma2909 Před rokem +1

    Sir, you have great teaching skills Thank you so much, Sir

  • @amaanraza1459
    @amaanraza1459 Před 2 lety

    Sir I am from Pakistan and iam totally your fan you have an. Amazing style I am much impressed and understand lectures easily

  • @satyanarayanaguggilapu3735

    Very good work you are doing and helping many GATE aspirants. Thank you sir. Wish this good work by you helps you further in your career.

  • @taramoni8129
    @taramoni8129 Před 5 lety +2

    sir! i am from bangladesh ..your teaching style is very beautiful..........

  • @manshalkhatri9289
    @manshalkhatri9289 Před 2 lety +6

    Thank you bro i got very good marks in dbms Subject i just watched till 1st to this 23rd lecture and your videos helped me too much to learn dbms concepts so fast : )

  • @kunaldas1736
    @kunaldas1736 Před 4 lety

    Excellent explanation.

  • @abhishek_kumarvelloreinsti1866

    I am from vellore institute of Technology, studying CSE, 1st year, I have dbms paper tomorrow, watched all my relevant syllabus, now I am confident ☺

  • @abdulazim9607
    @abdulazim9607 Před 4 lety

    nice works sir stay happy

  • @syedshashmi541
    @syedshashmi541 Před 4 lety

    Excellent perfect 👌 i save my time

  • @sanascookingspecial4055
    @sanascookingspecial4055 Před 3 lety +7

    Sir you are such a legend... your lectures are very helpful for my exams...I am preparing for my ajkpsc exam... inshallah I will get top scorers through your lectures inshallah

  • @MUHAMMADYASEEN-py1cm
    @MUHAMMADYASEEN-py1cm Před 6 měsíci

    No one in world have a skill, how to teach computer science?your the beauty of sir Varun Singh.

  • @prabalbhandari6029
    @prabalbhandari6029 Před 4 lety +1

    great job by cameraman too

  • @umarhassan8529
    @umarhassan8529 Před 3 lety

    bohat awla bro.Keep it up

  • @085-atindey2
    @085-atindey2 Před 3 lety +1

    Best channel for gate preparation 😌

  • @yougitarai2153
    @yougitarai2153 Před 2 lety +1

    Sir your teaching skill is greatful .thank u sir to help me for study 😊

    • @Eknamram
      @Eknamram Před 2 lety

      Notes provid krva do 😓😓

  • @farazz1716
    @farazz1716 Před 4 lety

    Nice explanation sir...

  • @ijazkhan-hs3op
    @ijazkhan-hs3op Před 2 lety +1

    Gud command on these topic

  • @sarthakwagh1453
    @sarthakwagh1453 Před 2 lety +4

    You are great sir 💯💯
    Thank you so much for the clear cut explaination in easy language❤️

  • @gulshanara5581
    @gulshanara5581 Před 11 měsíci

    u r the BEST..Appreciate

  • @bankorium
    @bankorium Před 2 lety +1

    I am IT officer aspirant and mera selection hoga ya ni pata ni but muje subject seekhne me maza aa ri hai becoz of Sir.
    Very Easy way apne sabkuch explain kr diya.

  • @riteshbisht94
    @riteshbisht94 Před 8 měsíci +1

    💎 Crystal clear 🔥

  • @missiontechdk6064
    @missiontechdk6064 Před 9 měsíci

    outstanding teaching 😃😃

  • @subhashishbehera7415
    @subhashishbehera7415 Před 3 lety +2

    I will complete dbms in this 15 days that for sure , i am a cs student currently 2 year and dbms will be taught to us in 6 semester but i will complete it earlier 😄

  • @epicclips8881
    @epicclips8881 Před 4 lety +1

    Op Explanation Sir ❤️❤️❤️❤️❤️❤️

  • @ArshArora-fl7hu
    @ArshArora-fl7hu Před rokem

    thanks sir for these wonderful videos.

  • @amrishticreative
    @amrishticreative Před 3 lety

    Sir thankyou so much sir
    Sir aap bht acha teach krte Hain
    Apki videos mujhe bht achi smjh ati hai
    Agar sir aap telegram par notes de dete to better hota or bhi
    Aapne jo teach kiya uske hi notes bnate to jada better hota......
    Ab notes kisi or ke bnane pdte h......
    But thankyou so much sir
    Mujhe starting me DBMS itna hard lga tha fir maine CZcams par video dekhi or apki videos first time me hi smjh aa gyi......
    Thanks a lot sir🙏🙏

  • @g2poetry150
    @g2poetry150 Před 4 lety +1

    Thanku.. thanku ....thanku... soooooooo much sir supppp 🥰🥰

  • @kirandoomraarora7191
    @kirandoomraarora7191 Před 5 lety

    thnku sir...aa gya smaj

  • @abhinavgharde6845
    @abhinavgharde6845 Před 5 lety +3

    Better than knowledge gate 💯

  • @sagarikadutta6931
    @sagarikadutta6931 Před 3 lety +1

    you are the best teacher.

  • @manpreetbatth2635
    @manpreetbatth2635 Před 2 lety

    Your teaching method is too good sir

  • @shivamehta0103
    @shivamehta0103 Před 5 lety +2

    Thanks brother 🙏🙏🙏🙏

  • @harshkoshta6785
    @harshkoshta6785 Před 3 lety +1

    amazing sir

  • @knowledgesumit8953
    @knowledgesumit8953 Před rokem +1

    You are a great sir 👍🏼💯💯

  • @kalyansharma1785
    @kalyansharma1785 Před 11 měsíci

    aap ko bahot bahot dhyabadh , mujhe normal forms nahi samajh aaraha tha aap ke video ne clear kar diya , me nepal se hu aapko bahut sara dhyawadh

  • @pushpamandi1120
    @pushpamandi1120 Před 7 měsíci

    Since i found this channel i am fully afraid of how to pass dbms after listening to ur lecture i have full confidence on getting good marks as well as knowledge.
    Thank u sir☺️

  • @gautamibhujle984
    @gautamibhujle984 Před 3 lety

    Nice explained sir 😊

  • @mohdsalmanmateen553
    @mohdsalmanmateen553 Před 4 lety +1

    One of the best Lecturer I have studied from ....you are awesome Varun sir

  • @Pavicy0nmani2082
    @Pavicy0nmani2082 Před 4 měsíci +1

    Thank you so much sir. You save my time.

  • @rituminhas1718
    @rituminhas1718 Před 3 lety

    Well done 👍 sir

  • @arunsuryan9133
    @arunsuryan9133 Před 4 lety +92

    If a prime attribute can determine a nonprime attribute in 3NF that means that there exists a partial dependency (Becuase every prime attribute is always a proper subset of candidate key itself) and it violates 2NF. Please clear this.

    • @tonypepper
      @tonypepper Před rokem +2

      I didn't understand......

    • @pixelsbyme
      @pixelsbyme Před rokem +6

      yes i guess you are saying correct, it violates 2nf and therefore also 3nf

    • @ZainAli-wk9yd
      @ZainAli-wk9yd Před rokem +8

      For 3NF , one condition is that the relation should be in 2NF , if a relation is in 2NF then primary key of relation would be whole candidate key

    • @sumitkevlani5740
      @sumitkevlani5740 Před rokem +2

      Left hand side should be candidate key or super key it means it violates the rule of proper subset case

    • @pranjalthakur1236
      @pranjalthakur1236 Před rokem +5

      If Rhs is prime attributes , not LHS

  • @Sandeep.Gupta27
    @Sandeep.Gupta27 Před 3 lety +2

    Thank you so much for making these videos. Really helpful and easy to understand. :)

  • @puskarroy7908
    @puskarroy7908 Před 2 lety +1

    you are doing good

  • @sansarscientistsduniya2881

    U are so good sirji great......