Very helpful and to the point for my semester exams. Thank you mam!
shreyanshdubey
Mam, primary is not mandatory for a table.
sanjaychauhan
How to find primary key if table contains all redundant data
lijinv
Good vedio madam, Primary key wont allow duplicates as well madam?
sreekanthb
the first line you say that each table should definitely have a primary key, but never explained why. Could have explained why it is compulsory to have a primary key with a real world example.
vishalwhite
so then what is difference between primary key and super key
StarZaiqa
mam you have taken name as candidate key but a candidate key can only have unique values right so why did u taken name as candidate key 8:00
garjun
difference between super key and primary key
saisurajprathapani
Maam, as per your explanation primary key and super key both are same.
swathik
you are so special in teaching. thank you for helping me in DBMS i have exam in two weeks it will help me a lot
cnto-ra
you can not take name and phone number togather as a candidate key
baranhamoglu
plz also provide a video on normalization mam
abhijeetgorai
Isn't the phone number primary key too??
deepeshghimireofficial
aunty apko padhana nahi ata hai apne pati ke pair dabao
dicyme
Mam I take phone number also a primary key right mam because of using phone number we can easily identify the student details
sujisuji
Maam, as per your explanation primary key and super key both are same.
swathik
It is possible of null value when u using phone number as primary key
manjunathjadhav
Tq ma'am we are able to understand Clearly ma'am
Manu-zrsc
mam y don't you explain about the syntaxes for writing the keys
