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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When the random Indian teacher save you from final exam.
My indian king
@@kat_enj Yo he literally saved me. I passed the exam and now I already graduated. Thanks to this Indian Man.
@@groomyClaimbodog i failed my exam from dmbs today :(( I missed one point. But still have 2 more attempts
@@kat_enj oh no I gotchu bro. You still got 2 more attempts. Keep working bro.
@@kat_enjdid you pass?
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!
Portugal crlh
@@SaNdR0RM46 Portugal fds
did you pass the exam 4 years ago?
@@leonelmessi3010 lollll
@@SaNdR0RM46 calou
45 minute lecture solved in 3 minutes. You're getting a like from me
me too
when an indian dude explains in 4 minutes what a teacher couldn't do in hours
This is the spirit of the internet.
I know right.
Beacuse in class many number of students
Absolute legend just saved me after I couldn't understand my professor 1 hour lecture on this
This video is from 2014 and we are here in 2023
simple and well explained, thank you my man!
I had no idea about the subject and the exam was next day
That clear it much thanks man
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
we are all waiting lol
Alright, now update us.
Still Waiting
Waiting
Thanks for saving my weekend in 4 minutes!
This is the video that I was looking for. I got it now.
Great content brother ......
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.
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
I subscribed man....You saved my DAY
KEEP UP THE GOOD WORK!
Well done! Mate
Very nice explanation 👌👌👌👌
It is very helpful for me... Best video
Thanks a lot. I was confused during my lecture hours. but u made it easy ...
You bless god, my Indian bro !!!
Thank you for making this soo accessible amazing! Great example, thank you so much!
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"
thank you for your straight to the point explanation
thank you so much for this video. You're the best.
Thank you sir , for best explanation ....
Fantastic explanation, you helped me a lot. Thanks!
Thanks for the great explaination
Great explanation!!! Thank you!!!
Thank you sir. It helped me alot
So helpful thank you!!!! :)
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?
It could take too much space to add a seperate column for that, space vs time is always an issue
isn't it slower to combine two columns together (if both columns are string type) rather than a dedicated integer atomic native type?
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.
Thks a lot bro...cool lecture..i like it
Thank you, great video!
If all the attributes appear on the left, do we just choose a random attribute and perform a closure on it?
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 ?
Short and best 🤩🤩🤩🤩
Thanks!!
you too bruhh
😂💔
God bless u for this excellent video
Awesome explanation
Thank you sir ❤
find all possible candidate keys right? then is only one possible ? what about others
Thank you so much .. you make it clear for me :D
ههههههههه يا ... شنو هذا
Thanks you are great , you helped me a lot
WOW. Thank you so much!
what would happen if every attribute appears on the right hand side
But AE is not akey?
What if we have all the attribute in the right side??
What about DCA? Would it be a candidate key?
Thank you sooooooo much king
what if all the attributes are also present on the right hand side? then what?
is candidate key is primary key..?
Thank you!
Real video start from 0:53
And ends at 2:55
I jst got ma mind fitting concept while kst going to give up thank you 😊
When the ride side will have all the elemants in a relation how can we then calculate candidate key
wondering this aswell...
Tq.
Clear explanation
what is simple candidate key. plz tell
Nah mate I actually love you
thankyou so much sir
Why you people are not using an example of table
what if the set containing AE (proposed candidate key) does't determine all the other attribute?? shoud we still call it a candidate key?
so in that case we can't call it candidate key.... :P
Super bro
Thnx a lot
thanq cho much
Find the closure and candidate key of this R(l,m,n,o,p) L->mn, NO->p, m->o, p->l
thank you
Thank you sir
Any one watching in 2025
supeup thoughts
holy shit thank you very much you are saving my ass
prefecto
So hard to understand accent.
Wowwww
Anyone know?
Find D' if D = (F' + G H)E
🐐
detur mind
Wrong information provided instead of fixed deposit he is saying functional dependency
Report him
Also he is not aware of alphabetical order
faltu
Thanks man
thank you !
thank you
Thanks sir