Finding Candidate Key | Database Management System

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  • Опубліковано 8 лют 2025
  • Step by step guideline to proceed with finding candidate key. To ask your doubts on this topic and much more, click on this Direct Link: www.techtud.com...
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КОМЕНТАРІ • 119

  • @groomyClaimbodog
    @groomyClaimbodog 4 роки тому +298

    When the random Indian teacher save you from final exam.

    • @kat_enj
      @kat_enj 2 роки тому +5

      My indian king

    • @groomyClaimbodog
      @groomyClaimbodog 2 роки тому +8

      @@kat_enj Yo he literally saved me. I passed the exam and now I already graduated. Thanks to this Indian Man.

    • @kat_enj
      @kat_enj 2 роки тому +3

      @@groomyClaimbodog i failed my exam from dmbs today :(( I missed one point. But still have 2 more attempts

    • @groomyClaimbodog
      @groomyClaimbodog 2 роки тому +3

      @@kat_enj oh no I gotchu bro. You still got 2 more attempts. Keep working bro.

    • @Chumbuket
      @Chumbuket 10 місяців тому +1

      @@kat_enjdid you pass?

  • @TugasPT
    @TugasPT 6 років тому +168

    Dude I was about going to give up and get sleep, until I clicked this video as "last chance" and you explained in 4 minutes, thank you!

  • @WaspHotel
    @WaspHotel 5 років тому +44

    45 minute lecture solved in 3 minutes. You're getting a like from me

  • @bysh.babyyy
    @bysh.babyyy 4 роки тому +133

    when an indian dude explains in 4 minutes what a teacher couldn't do in hours

    • @demolition_lovers
      @demolition_lovers 3 роки тому +5

      This is the spirit of the internet.

    • @AMEHZ1
      @AMEHZ1 3 роки тому +1

      I know right.

    • @AVEnhance
      @AVEnhance 2 роки тому

      Beacuse in class many number of students

  • @adriancollier4681
    @adriancollier4681 2 роки тому +5

    Absolute legend just saved me after I couldn't understand my professor 1 hour lecture on this

  • @novagames571
    @novagames571 2 роки тому +13

    This video is from 2014 and we are here in 2023

  • @Frincles
    @Frincles 7 років тому +23

    simple and well explained, thank you my man!

  • @hghchaito3972
    @hghchaito3972 7 років тому +1

    I had no idea about the subject and the exam was next day
    That clear it much thanks man

  • @MisterAki069
    @MisterAki069 6 років тому +7

    omg thank you bro I like ur accent stay healthy bra, when you read this 5 years ago maybe I ll have my bachelor and will comment again see yaaaaaa

  • @oliverthomas700
    @oliverthomas700 2 роки тому

    Thanks for saving my weekend in 4 minutes!

  • @sherl6ck168
    @sherl6ck168 3 роки тому

    This is the video that I was looking for. I got it now.

  • @witnessmbadame3163
    @witnessmbadame3163 4 роки тому +2

    Great content brother ......

  • @afg229
    @afg229 3 роки тому +3

    I have an instance where one of the attributes from the candidate key showed up on the right side but it was proven to be a candidate key because the closure contained all of the attributes.

    • @Astronomy.532lifenspace
      @Astronomy.532lifenspace 10 місяців тому

      How do you go on finding other candidate keys on such scenario. Do you add another attribute to make them three or you only work with 2 in case you don't get to the answer on the first attempt

  • @HumaRizwan
    @HumaRizwan 4 роки тому

    I subscribed man....You saved my DAY
    KEEP UP THE GOOD WORK!

  • @madhavanmariappan3768
    @madhavanmariappan3768 2 роки тому +1

    Well done! Mate

  • @koyavasudhalakshmi2073
    @koyavasudhalakshmi2073 3 роки тому +2

    Very nice explanation 👌👌👌👌

  • @trupatikadbe4719
    @trupatikadbe4719 2 роки тому

    It is very helpful for me... Best video

  • @SivaneshFiz
    @SivaneshFiz 8 років тому

    Thanks a lot. I was confused during my lecture hours. but u made it easy ...

  • @hoangvietng7100
    @hoangvietng7100 10 місяців тому

    You bless god, my Indian bro !!!

  • @mr.mustache4743
    @mr.mustache4743 4 роки тому

    Thank you for making this soo accessible amazing! Great example, thank you so much!

  • @AkashVermaNITian
    @AkashVermaNITian 9 років тому +2

    How should we find "all" candidate keys of R i.e. not stopping after finding just the first one i.e. when should we be satisfied that... "yes! there can NOT be any more candidate keys in this relation"

  • @shortsdeliveries
    @shortsdeliveries 5 років тому +1

    thank you for your straight to the point explanation

  • @habib97se
    @habib97se Рік тому

    thank you so much for this video. You're the best.

  • @trupatikadbe4719
    @trupatikadbe4719 2 роки тому

    Thank you sir , for best explanation ....

  • @cdefghia
    @cdefghia 8 років тому +3

    Fantastic explanation, you helped me a lot. Thanks!

  • @vickysharma9227
    @vickysharma9227 2 роки тому

    Thanks for the great explaination

  • @GG_Booboo
    @GG_Booboo 4 роки тому

    Great explanation!!! Thank you!!!

  • @usharani1464
    @usharani1464 9 місяців тому

    Thank you sir. It helped me alot

  • @chantel2689
    @chantel2689 Рік тому

    So helpful thank you!!!! :)

  • @daixtr
    @daixtr 10 років тому +3

    thank you nice tutorial. Can you please explain, why bother to combine columns to create keys when it is much quick to add another auto-increment column that also guarantees uniqueness?

    • @GertdeWilde
      @GertdeWilde 10 років тому

      It could take too much space to add a seperate column for that, space vs time is always an issue

    • @daixtr
      @daixtr 10 років тому +1

      isn't it slower to combine two columns together (if both columns are string type) rather than a dedicated integer atomic native type?

    • @GertdeWilde
      @GertdeWilde 10 років тому

      Dexter Aparicio
      I think the dedicated integer is always faster, especially when indexed, but it costs more space (although little). Each DB manager/creator should consider the pros/cons of both options for each application.

  • @swethakalidoss6578
    @swethakalidoss6578 7 років тому +1

    Thks a lot bro...cool lecture..i like it

  • @VictoriaSyms
    @VictoriaSyms 10 років тому +1

    Thank you, great video!

  • @sunoharachan3820
    @sunoharachan3820 9 років тому +8

    If all the attributes appear on the left, do we just choose a random attribute and perform a closure on it?

    • @armcska582
      @armcska582 6 років тому

      What he said is that you should look at the right hand side and check if there are missing attributes. If they are then the closure of those attributes is a kandidate key. If all the attributes are present in the left side then there may be is more than one key ?

  • @aishwaryaranghar3385
    @aishwaryaranghar3385 2 роки тому

    Short and best 🤩🤩🤩🤩

  • @sachiintha
    @sachiintha 3 роки тому +1

    Thanks!!

  • @miracles_makers3668
    @miracles_makers3668 5 років тому

    God bless u for this excellent video

  • @abhisheksuper20
    @abhisheksuper20 7 років тому

    Awesome explanation

  • @ayusheeshaw803
    @ayusheeshaw803 29 днів тому

    Thank you sir ❤

  • @AK-cy3ql
    @AK-cy3ql Рік тому

    find all possible candidate keys right? then is only one possible ? what about others

  • @a7madfriends
    @a7madfriends 8 років тому +1

    Thank you so much .. you make it clear for me :D

  • @user-18873ty
    @user-18873ty 8 років тому

    Thanks you are great , you helped me a lot

  • @madmaxonliner
    @madmaxonliner 6 років тому

    WOW. Thank you so much!

  • @ADC3131
    @ADC3131 2 роки тому

    what would happen if every attribute appears on the right hand side

  • @The_ready_guy
    @The_ready_guy 2 роки тому +1

    But AE is not akey?

  • @santhoshbahadurpaudel2788
    @santhoshbahadurpaudel2788 3 роки тому

    What if we have all the attribute in the right side??

  • @visheshmehta5543
    @visheshmehta5543 8 років тому +1

    What about DCA? Would it be a candidate key?

  • @yesminebellakhal
    @yesminebellakhal 8 місяців тому

    Thank you sooooooo much king

  • @Shehzarr
    @Shehzarr 5 років тому

    what if all the attributes are also present on the right hand side? then what?

  • @sanathkumar8491
    @sanathkumar8491 4 роки тому

    is candidate key is primary key..?

  • @Лизочка-ф1з
    @Лизочка-ф1з 3 роки тому

    Thank you!

  • @PinakShulpanini
    @PinakShulpanini 5 місяців тому

    Real video start from 0:53

  • @tasnimpatel5597
    @tasnimpatel5597 2 роки тому

    I jst got ma mind fitting concept while kst going to give up thank you 😊

  • @RAFIAhmed-qy4eq
    @RAFIAhmed-qy4eq 8 років тому +1

    When the ride side will have all the elemants in a relation how can we then calculate candidate key

  • @42vi-dsreekamaleshrm30
    @42vi-dsreekamaleshrm30 3 роки тому

    Tq.
    Clear explanation

  • @Raj-yj6fk
    @Raj-yj6fk 5 років тому

    what is simple candidate key. plz tell

  • @zu6166
    @zu6166 Рік тому +1

    Nah mate I actually love you

  • @dumsinghsolanki9796
    @dumsinghsolanki9796 4 роки тому

    thankyou so much sir

  • @IntellectX12
    @IntellectX12 Рік тому

    Why you people are not using an example of table

  • @shivamshah6579
    @shivamshah6579 8 років тому +1

    what if the set containing AE (proposed candidate key) does't determine all the other attribute?? shoud we still call it a candidate key?

    • @vikasparmar6234
      @vikasparmar6234 8 років тому

      so in that case we can't call it candidate key.... :P

  • @daniealdecobray3774
    @daniealdecobray3774 3 роки тому

    Super bro

  • @arpitaghosh1426
    @arpitaghosh1426 6 років тому

    Thnx a lot

  • @vv906
    @vv906 6 місяців тому

    thanq cho much

  • @aashishthedevilboy
    @aashishthedevilboy 5 років тому

    Find the closure and candidate key of this R(l,m,n,o,p) L->mn, NO->p, m->o, p->l

  • @myway063
    @myway063 7 років тому

    thank you

  • @raihanrifat8371
    @raihanrifat8371 10 років тому

    Thank you sir

  • @amanshrimali2531
    @amanshrimali2531 Місяць тому +1

    Any one watching in 2025

  • @sumansoni4249
    @sumansoni4249 6 років тому +1

    supeup thoughts

  • @TheGanner1
    @TheGanner1 4 роки тому

    holy shit thank you very much you are saving my ass

  • @MOM777100
    @MOM777100 3 роки тому

    prefecto

  • @GoatMen
    @GoatMen 3 роки тому +1

    So hard to understand accent.

  • @arbaazm3761
    @arbaazm3761 3 роки тому

    Wowwww

  • @markusd6139
    @markusd6139 3 роки тому

    Anyone know?
    Find D' if D = (F' + G H)E

  • @avkaranklair1353
    @avkaranklair1353 2 роки тому

    🐐

  • @Judderplush
    @Judderplush 9 років тому +12

    detur mind

  • @pranavarora6693
    @pranavarora6693 Рік тому

    Wrong information provided instead of fixed deposit he is saying functional dependency
    Report him
    Also he is not aware of alphabetical order

  • @sujalutekar9417
    @sujalutekar9417 Рік тому

    faltu

  • @hasarangawijesinghe5604
    @hasarangawijesinghe5604 3 роки тому +1

    Thanks man

  • @LaythAJ
    @LaythAJ Рік тому

    thank you !

  • @berkayklc1613
    @berkayklc1613 Рік тому

    thank you

  • @pinjuhsaikia3821
    @pinjuhsaikia3821 5 років тому

    Thanks sir