Cardinality Ratio | Database Management System

This lecture explains the concept of Cardinality Ratio in detail. To ask your doubts on this topic and much more, click on this Direct Link: www.techtud.com...
IMPORTANT LINKS:
1) Official Website: www.techtud.com/
2) Virtual GATE(for 'All India Test Series for GATE-2016'): virtualgate.in/...
Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share!
Our Social Media Links:
Facebook Page: / techtuduniversity
Facebook Group: / virtualgate
Google+ Page: plus.google.co...
Last but not the least, SUBSCRIBE our UA-cam channel to stay updated about our regularly uploaded new videos.

[@kurtrusseltaruc8551]

a lifesaver tutorial... thank you 💕💕

[@gbh50137hxhdududhsh]

Thank you very much, You really saved my life.
All the best,

[@naharulhayat]

you are a lifesaver...thanks for this

[@kuchbhi6018]

Sir,when you using a wrong arrow for drawing many to many ER diagram.You have drawn -> there, which is used for one cardinality.

[@AmberKK2020]

it is good Sir, But the sign for each cardinality is not indicated on this video as it will be supposed to be the essence of emphasizing each relationship. Overall this video creation makes it clear for students. Thank You!

[@gummihelgason]

I believe your arrow markings are incorrect. A one to one relationship should have arrows on both sides. A one to many should have an arrow on one side, depending on the relationship. And many to many has no arrows.
It also depends on whether you have a Max 1 or Has To Have 1 relationship which type of arrow you use.

[@yiwenwang2306]

thats only one notation type

[@amansinghchauhan2975]

Yes

[@darshank3012]

thank you. it was helpful

[@ritvel-x4j]

At 6:41 is it Stud has dept or Dept has studs.
Thank you

[@PratikShende91]

+ritesh velaga 1 dept has multiple stud bro.means dept has stud.may be he mistaken a bit.....1:N relationship

[@nadeeradulan9231]

Thanks

[@Tejashwini_narasimha]

we take equal to one employee works one department

[@MisterAadj]

clear

[@rishabhjain5586]

in one to one relationship there will be two arrows

[@obedmwakalonge1372]

student is a parent entity and department is a child entity...!!

[@samratsharma1522]

confusing in arrow sir !!!!your one to one er diagram and many to many er diagram in same but in book still different help mee sir !!! EXAM IS SO NEAR........Reply mee fast sir !!!

[@AyushLikhar]

LOL

[@Tejashwini_narasimha]

nice sir

[@technicalsmart6834]

Gr8!

[@AddieInGermany]

how student has department ?/ -__________-

[@sumittribedi2474]

dept like economics hons, english hons etc etc

[@darthbleen984]

dont say ok too much.. ok!!! haha

[@masumrahman9244]

Ok ok ok . :p

[@zaheeranwar9628]

your pronunciation is not good other things are good ..... any how thanks