DBMS | ER Model | Weak entity | Ravindrababu Ravula | Free GATE CS Classes

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[@chimmiebomb]

Dude you explained things SO MUCH BETTER THAN MY PROFESSOR OMG. I was struggling so much and I feel like I’ve finally seen the light😭

[@neerajkaushik777]

Sir, You have explained all concepts in a very simple and elaborate way. Thanks a lot.

[@chibimink]

Sir! I have been watching your videos for pre-exam preparation
You really good at explaining. This is the second course I watch. Really like the way you explain. Love you!

[@prashantk.bhardwaj162]

Hello sir,
I like your video tutorials on automata and compiler, sir I've a request could you please upload more video tutorials on computer organisation and DBMS i'll be highly thankful to you sir.

[@tait8480]

PLEASE COME TO ENGLAND AND BE A LECTURER! YOU ARE SUCH A GOOD TEACHER. THANK YOU SO SO MUCH

[@shivangisrivastava1158]

Was really worth watching. Superbly explained , Thank you Sir 🔥

[@Alonkete]

Love me

[@pratyushbhatt1712]

Your voice is sooo soothing!! Didnt even got an idea when I binge watched all the videos!

[@supunmaththanagoda9082]

Very clear..
You are great.. ❤️👌
Thank you
From Sri Lanka 👍🙏💯

[@shivanigulati5235]

Your lectures are so beautifully given by you at every step in the subject with outstanding examples. Thank you sooooo much.

[@dandelion0331]

dude i use your videos as pre-exam crash course. good skills on explaining stuff. thanks for these videos.

[@JithuNair95]

Same here!

[@mrAmal45]

we never address great person as dude. Better call him sir or anna

[@JithuNair95]

Amal seriously man ? Stop with that, he considers us sibling students meaning we are from the fraternity of engineers, hence pretty sure dude is ok.

[@BangMaster96]

I like how you say 'a' as 'yae'

[@rainbowdu509]

Ur explantion is so good...far better than my lecturer in australia...keep it up...thanks heaps

[@lizardgeek2374]

Thank you closed captioning, very cool.

[@Long_yeb]

tomorrow is my mid-sem exam...n by just seeing this vedeo my preparation is done..

[@bigbazooms]

14:28 me giving myself a pep talk before goin to work

[@drbhupeshgour5801]

Dear Ravindrababu Ravula, Nice presentation on weak and strong entity

[@sunnyjain630]

Thanking you sir for such a nice explanation it clear my concept about weak entity from skretch.......!!

[@devendrayadav-um3nj]

very less videos.... plz upload more as soon as possible like normal forms, SQL ,joins, view

[@elizabethmj6506]

Hello sir, Thank you for your good explanation...I am preparing for a net exam.

[@soumyadiptaganguly8729]

Hello Ravindrababu. Can you please upload video series on RDBMS beginners and advanced level also?
-Soumyadipta

[@zeroone4597]

That's what happens when we have all our concepts clear as water!!!

[@kumariabha1382]

sir good explanation , obviously I understood that always double lines(total participation) does not mean weak entity
can we also determine without much thinking (of whether that entity having a key attribute or not just by SEEING THE DIAGRAM???) I.e by seeing double lines AND ALSO double diamond???????
pls correct me if m wrong

[@abhishekbaranwal9267]

Very good explanation 👌👌

[@daekist]

So, using your example, giving each dependent a unique ID makes it a strong entity. If I don't assign a unique ID but the existing attributes are not enough to create a composite key (if two dependents of the same employee have the same name, age, DOB, etc), then what do I do to show this?

[@faizanqazi7004]

Thank you sir

[@akhilesh_kumar17]

these vedios are very usefull ........thank you so much

[@galaxyuse9897]

Relationship is 'depends on' or 'depended by'?

[@vedmadhu5958]

Very Helpful

[@shafrinmohamed4326]

thankyou sir perfect explanation

[@Virgo_6990]

sir tysm ...pls upload more topics like normalisation

[@rohitmondal6876]

Lovely explanation.

[@saratchand4275]

hope u r moving towards excellency. keep it up

[@vishnukl]

what if an employee can have multiple dependents, then emp_id can't by itself uniquely identify a dependent. Even if we have a composite key of name,age, what if an employee has two dependents with same name and age. Can we create a unique key column for dependent say dependent_id? so that it helps to identify dependents.

[@daekist]

+vishnu karthik This is exactly what I'm trying to find out too. Did you ever figure out the answer to this?

[@vishalmishra1937]

mast example h sir of license card

[@bigchunk1]

I feel like a moron.

[@EducaLK]

Good Explanation

[@satyarthification]

Great Job Sir !

[@kawyachandrasekara3959]

Thankyou very much sir

[@jaswanthsabbisetti6820]

I guess you are following Pearson’s textbook..

[@YashPatel-fy1uc]

Sir plzz explain keys in DBMS

[@AanzilAkram]

Sir, can any entity type have two tuples exactly two identical tuples ? And isn't it against rdbms guidelines ?

[@julfikaralisaju1692]

it give me good concept ...thanks

[@sarathprasad2408]

THANK YOU SOOOOOOOOOOOOOOO MUCH

[@sudhanshu042]

good job great............

[@tareqmahmud7760]

nice explanation , using simple english :)

[@mufeedavv9138]

What to do for gettting access to hidden videos

[@ravindrababu_ravula]

Check www.ravindrababuravula.in

[@abhishekchaudhary0003]

The best Sir

[@asishdharamukkula3788]

sir please upload more videos

[@banashreeghosh5552]

exactly

[@iamkisz]

nc

[@baqirhusain5652]

U are the love of my life

[@louerleseigneur4532]

Thanks sir
Thanks god

[@sonubetaa]

thanks again!

[@choegyalnorbu47]

thanks ravi

[@AnkitaYadav-qp4wn]

CFBR

[@shreyasrivastava4034]

#cfbr