Lecture - 9 ER Model to Relational Model Maping

[7thAttempt]

Subtitles would make this stuff perfect .. shame the cc function doesn't work

[nejnadusho]

Dr.Srinath you are No1.

Plain, clean, dense, perfect depth.WOW

Keep going.

[HaamSapTjai]

The intro is so freaking awesome!

[MrShiningmetal]

@all brainless who comment on Dr.srinath language.

Dr.srinath is MS from IIT Madras. He did PHD from BSRT germany.

His published papers from 2002 which probably means he completed his PHD in 2002.

from his examples of student entity roll number(2003CSExyz) and 256 MB pen drive cost of 3000 implies he taught this course in 2003. Before 2002 period almost all the programs in germany were in german lang. most probably he must have taught this course just after returning from germany.

[lelouch3]

lolol indians

[nikithahasid]

sir thanks a lot.this clip have help me do my seminar.each and every portion was well explained .

[Indy1002]

@lelouch3 lol oriental

[bangalorebully]

@lelouch3 So what's you grinning about??Go and eat some dog meat or locust or anything that crawls..it's common in your place ain't it?

[filmybaljit]

why i'm an indian and can't understand what i'm studying!!!!!! :(

[MJ081208]

Mr.mossimopooky - completely agree with you ..

[mossimopooky]

The uh's and stuttering are very distracting, although the teaching seems good.

[Arjun007ize]

Nice vedio,Subscribed.

[bulllsize]

somebody plz give or tell me the link of lecture dealing with Normalisation...by nptelhrd

[monthtrial]

Good stuff... just a bit difficult to understand the accents at times.

[ks21285]

This video is really nice.

[NajanJan]

could you please explain the difference between (0,n) and (1,n) relationships?

For example a student can have 1 or many courses this means (1,n) right? when do I have(0,n)?

thanks

[ayuready42]

Say the relationship between the student and course entity is "takes a course", then we have the association: Student takes a Course.

If the cardinality for the Student side of the relationship were to be (0,n) then that means there can be an instance of the entity type Student that doesnt take any course.

If the previous cardinality is (1,n) that means that out of all the entities represented by the entity type Student, they all have to be coursing at least ONE course.

[username21available]

wrong !

(0,n) means a course may exist without any student taking it.

(1,n) means a course must have at least 1 student!

[NajanJan]

thanks for the video.

if you speak a little slower it would be easier to follow : )

but it was helpful to me, thanks.

[Reikalingas]

at first it was hard to understand the accent, but its a very good video, it helped me a lot with my studies, thanks