Watching this makes me chuckle and so emotional at the same time. I'm taking a database class at Uh and I paid $3000 for it just to watch youtube. Because my professor can't teach. He has a thick accent and doesn't speak clear English. He never makes joke or does any small talk or gives concrete examples. I always fall asleep half way thru his lecture. Wish we have professor that know how to teach like you at the university of Houston.
yo this professor is so much better than mine in Baruch College...if my professor (same class, DBMS Design) is 1/3 as funny and pleasant enough to look at, and speaks at least 1/2 of his speed of speech, I won't be ditching my textbook and his slides and learning so much more from this video!!! Honestly this guy is awesome, if I could I would love to be enrolled in his class in CMU. But nonetheless it's better late than never, still a gem to check out now when i need to study for my test tomorrow lolz.
At 56:40 If we rolled back T1 I suppose we shall have to roll back T2 as well, since R(A) in T2 would be reading a dirty value. EDIT: Yes, this is confirmed at 1:09:45 with a similar example.
I think the notion of consistency as used in DBs (en.wikipedia.org/wiki/Consistency_(database_systems) is different from the notion of the term consistency in distributed systems. I thought that in classic DB parlance, it refers to data model consistency / integrity as compared to replica consistency. The aspects of consistency that fell into the realm of DB design included aspects like defining constraints on schemas like foreign keys, cascades etc.
How unprofessional. 16 min. This individual is supposed to be modelling the behaviour we expect of students and can't seem to talk for more than 5 minutes without swearing. I just can't imagine having a student do a presentation or go to a job interview and have them swear every 5 minutes. It isn't acceptable in the workplace. It isn't professional. It is a form of aggression. Shame on you for not seeing how uncomfortable you make some students feel in your class. D-
He is fucking amazing. His attitude is more than welcome, and strongly preferred over hollow , but polished fools. Having come from a background where I worked with investment bankers all the time, I can tell you that I am sick of leaders who care more about overt polishing of their personal over real content. Your criticism is like telling Einstein that he should be ashamed for having a bad handwriting. If Andy is reading this, please do not change yourself Andy - as an educator myself, I believe any tool that improves expressiveness of an instructor is fair game. And your use of expletives often gives me a very honest picture of trade offs and pros and cons which I simply could never infer from flowery documentation :)
It is not a form of aggression, it is a very effective tool for emphasis and used correctly will grab attention. Being offended by swear words is ridiculous. You are choosing to be offended by words that someone, at some point, has told you are taboo and that you should be offended upon hearing them. That is what it boils down to. People like yourself are the ones that make situations uncomfortable by drawing attention and proclaiming how unwelcome these taboo words are to your ears. Fucking get over yourself, be a bit more professional and not feign such drama. If you want to appear superior so badly, try saying something interesting instead.
Quack on 28:35
@Jigao Luo Pavlo implements Duck
Watching this makes me chuckle and so emotional at the same time. I'm taking a database class at Uh and I paid $3000 for it just to watch youtube. Because my professor can't teach. He has a thick accent and doesn't speak clear English. He never makes joke or does any small talk or gives concrete examples. I always fall asleep half way thru his lecture. Wish we have professor that know how to teach like you at the university of Houston.
yo this professor is so much better than mine in Baruch College...if my professor (same class, DBMS Design) is 1/3 as funny and pleasant enough to look at, and speaks at least 1/2 of his speed of speech, I won't be ditching my textbook and his slides and learning so much more from this video!!! Honestly this guy is awesome, if I could I would love to be enrolled in his class in CMU. But nonetheless it's better late than never, still a gem to check out now when i need to study for my test tomorrow lolz.
At 56:40 If we rolled back T1 I suppose we shall have to roll back T2 as well, since R(A) in T2 would be reading a dirty value. EDIT: Yes, this is confirmed at 1:09:45 with a similar example.
1:13:52 Thank you really smart people! I respect you greatly.
be my professor... i want to throw mine in the bin.
On page 47 of the slide, the left side schedule has "read dirty" problem, but the right side Schedule is serializable.
1:13:27 That swipe at Nodejs programmers was legendary!!
I think the notion of consistency as used in DBs (en.wikipedia.org/wiki/Consistency_(database_systems) is different from the notion of the term consistency in distributed systems. I thought that in classic DB parlance, it refers to data model consistency / integrity as compared to replica consistency. The aspects of consistency that fell into the realm of DB design included aspects like defining constraints on schemas like foreign keys, cascades etc.
he reminds me barry kripke from big bang theory
Well done barry kripke 👏👏😂
Thanks for the lecture!
According to wiki, CouchDB also implements MVCC. en.wikipedia.org/wiki/Apache_CouchDB
Concurrency control, fk yeah! Lol
How unprofessional. 16 min. This individual is supposed to be modelling the behaviour we expect of students and can't seem to talk for more than 5 minutes without swearing.
I just can't imagine having a student do a presentation or go to a job interview and have them swear every 5 minutes.
It isn't acceptable in the workplace. It isn't professional.
It is a form of aggression. Shame on you for not seeing how uncomfortable you make some students feel in your class. D-
He is fucking amazing. His attitude is more than welcome, and strongly preferred over hollow , but polished fools. Having come from a background where I worked with investment bankers all the time, I can tell you that I am sick of leaders who care more about overt polishing of their personal over real content.
Your criticism is like telling Einstein that he should be ashamed for having a bad handwriting. If Andy is reading this, please do not change yourself Andy - as an educator myself, I believe any tool that improves expressiveness of an instructor is fair game. And your use of expletives often gives me a very honest picture of trade offs and pros and cons which I simply could never infer from flowery documentation :)
It is not a form of aggression, it is a very effective tool for emphasis and used correctly will grab attention. Being offended by swear words is ridiculous. You are choosing to be offended by words that someone, at some point, has told you are taboo and that you should be offended upon hearing them. That is what it boils down to. People like yourself are the ones that make situations uncomfortable by drawing attention and proclaiming how unwelcome these taboo words are to your ears. Fucking get over yourself, be a bit more professional and not feign such drama. If you want to appear superior so badly, try saying something interesting instead.
Really unfortunate thats all you got from there
@Tor. Shut the fuck up and go back to your moms basement.