To Get Certification, Click Here: bitly.ws/PXXy Use coupon "KZbin12" to get ‘’FLAT 12%’’ OFF at Checkout.
@TheWatchmaan6 жыл бұрын
You are one of the best teachers I have seen online. From last 2 years your lectures are life saver for me in every semester.
@arunkumarg31576 жыл бұрын
Awesome explanation I've searched for explanation of keys in many websites and videos. Sir, your way of explaining things are very clear and much understandable. Thanks for the lecture.
@vinerskaadda68525 жыл бұрын
Really you are a good teacher having excellent communication skills and depth subject knowledge .
@monilpanchal4 жыл бұрын
Very simple, precise, and practical explanation.
@smurfmoniquii4 жыл бұрын
Thank you so much for all of your videos. I've been taking a database class online and its nice to have some actual instruction led videos
@iamjuliana4 жыл бұрын
Very clear! Thank you so much!
@pabitraroy39073 жыл бұрын
Thank you sir.
@bhaktijpatil6 жыл бұрын
you are god , sir. dhanyavaad
@kalyankumar13726 жыл бұрын
What a lecture sir.. thank you soo much
@Ashok-oe3lo4 жыл бұрын
Unique key can hold only one null value, so example can be different to explain this. But thanks for your time
@raftiradiana75606 жыл бұрын
Thank you Sir :)
@pankajrohira13414 жыл бұрын
Sir as you told primary key can not be updateded, and in example of students you took the class as a primary key, so if a student will clear the class then database should be updated. So our primary key should be something else.
@awalktoinfinity6655 жыл бұрын
What ..? You are wrong here .. Primary key attribute values are updatable ... I have done that : but make sure that it is unique from others in that attribute. Please correct it