I came down to the comment section to talk about how much this video helped me but then saw everyone else already did that... So instead let's talk about how schools need a major reform because CLEARLY, something isn't working if literally, every comment I read (and I read all of them before I got to the bottom of the page and YT had to load more) was about how shitty their professor was, and how amazing this lady is (which for the record I COMPLETELY agree with)
@Jeremy Wright ok, you assumed a stranger is in debt for college, assumed someone not learning anything just because someone taught better than college prof, if someone is ignorant in this conv, it is you.
It's weird when you hear a professor that actually seems to enjoy talking about the topic they specialize in. It's almost like they care enough about it to have a decent understanding. This lets them explain the concept extremely clearly. Hmmm.. I wish all of our teachers taught like this! Thank you!
Most professors ive had to date have been fairly passionate about the subject they are teaching. They are sometimes not the best teacher but that doesn't discredit their passion. My experience I guess but my professors have been great but I'm at a smaller university.
I have a midterm exam in Database I tomorrow, and I learned SQL before learning Relational Algebra. This video really helped me get a grasp on Relational Algebra and I'm feeling pretty confident now!
@@markwiedeman7271 Lol this took me back.. My Database I professor was terrible. I'm a Database Administrator now... we don't use Relational Algebra... shocker am I right 😂 (I mean, it teaches logic pretty well; AND, OR, XOR, etc.)
I understood the entire Relational Algebra concept just by watching this video once. It was so straightforward and brief. Thank you so much! This video really helped me alot.
I was searching to learn the same thing, but unable to find a proper video, at last this saved my time even after 8 years. Why such Universities are respected? Salute.
amazing how you can teach this so quickly. Now, I can't tell if it is a simple concept or if you are just a really good teacher. It's probably because you are a good professor. Thank You Very Much!
"This is in fact the normal set cross product that you might have learned way back in the elementary school". Oh I must have skipped that day to prepare for an exam on the multiples of 3... Great video btw!
I wish there were videos like this for every subject and every category because this way learning would be much better. We always need many clear examples apart from simple theory for edge-cases and so many more.
Amazing video, made this relational algebra stuff SOOOOO much easier to understand and digest than my professor, who just reads off the slides. Great work mam.
This absolutely helped me understand the topic after stumbling with the videos made by my university. Very well explained! Thank you for your service to enhancing global knowledge!
Thank you so much for explaining this subject. We just went over it in class for 1.5 hours and you nicely and simply explained it in less than 20 minutes!! Everything you said just made perfect sense :-)
This is them 11 years ago, Imagine how far they've come now; My current professor doesn't even have the energy to do these explanations on a laptop and instead writes on a whiteboard. Mind boggling to say the least.
Great explanations and examples, thank you for posting this. I have to agree with everyone else saying that this is not taught well enough in our classes.
Great video. Relational algebra was way too difficult to grasp, I wish I had this video at the beginning of the semester because this is so much more simple.
Thank you very much for this great tutorial. I’ve read a database book on relational algebra and the text example's were unclear. This video made it easy and fun to learn.
My university really should give money to UA-cam. They even encourage us to study using "external source" (youtube, google mostly) while shitty lecturers and inexperienced tutors are teaching the shitty contents which are never used in current industry. and I am talking about Ranked 1 university in my country. I actually tested. I never went to any lecture and i only saw lecture outline and topics and studied only through youtube+google+SO and I got A. and they charge few K$ per paper. Exactly why geniuses drop out universities or never go to uni at all. Im not a genius so i need a degree + lot of internships on my CV to start out from graduate position. So much for a piece of graduation paper. Shitty university.
Thank you so much! I had a hard time to understand my professors script about RA. Found this video and i passed my exam for Data Knowledge Engineering Part 1. :D
TA's tell us you only understand 30% of what u hear in a lecture at my university, definetly not the case with this lecture we're just geting ripped off lmao. 10/10 lecture right here
For cartesian product of final natural join example: Names and GPAs of students with HS > 1000 who applied to CS at college with enr > 20000 and were rejected: Π sName, GPA (σ student.sid = apply.sid AND college.cname = apply.cname AND enr > 20,000 AND major = 'cs' AND dec='rej' AND hs > 1,000 ( student X ( college X apply ))
So this is the power of Stanford professors. Impressive.
Have to say this is great...20 mins = 3 trash lectures given by my professor....
Yeah, this lecturer is a lot better than my lecturers.
hhhhhhhh I am also taking CSC343
lol accurate
Astaghfirullah, don't be mean brother 😅
Yes, they have a way of making simple things complicated
I came down to the comment section to talk about how much this video helped me but then saw everyone else already did that... So instead let's talk about how schools need a major reform because CLEARLY, something isn't working if literally, every comment I read (and I read all of them before I got to the bottom of the page and YT had to load more) was about how shitty their professor was, and how amazing this lady is (which for the record I COMPLETELY agree with)
Still saving lives 7 years on! Thank you so much!
8yrs now
@@batgaming1279 9 years
11 years
12 years
Thank you Professor for explaining in 18 minutes what my prof failed to do in 2 months
I learned more in the first 5 minutes of this video than I did in the whole semester of my DB lecture, thanks 🤩
ㄴSeriously. Agreed
I think if you paid attention in the class you would understand anyway
@@jay_wright_thats_right sure if these videos give us degree
@@jay_wright_thats_right how on earth do you get that conclusion from my comment
@Jeremy Wright ok, you assumed a stranger is in debt for college, assumed someone not learning anything just because someone taught better than college prof, if someone is ignorant in this conv, it is you.
It's weird when you hear a professor that actually seems to enjoy talking about the topic they specialize in.
It's almost like they care enough about it to have a decent understanding. This lets them explain the concept extremely clearly.
Hmmm.. I wish all of our teachers taught like this! Thank you!
Most professors ive had to date have been fairly passionate about the subject they are teaching. They are sometimes not the best teacher but that doesn't discredit their passion. My experience I guess but my professors have been great but I'm at a smaller university.
8 years later and this is still really solid content. Thank you for this.
Your video was way better than two whole semesters in college.
I have a midterm exam in Database I tomorrow, and I learned SQL before learning Relational Algebra. This video really helped me get a grasp on Relational Algebra and I'm feeling pretty confident now!
I know this is two years old, but im in the same exact situation lol
@@markwiedeman7271 Lol this took me back.. My Database I professor was terrible. I'm a Database Administrator now... we don't use Relational Algebra... shocker am I right 😂 (I mean, it teaches logic pretty well; AND, OR, XOR, etc.)
Your two videos on relational algebra taught me better than 3 two-hour classes combined. Why am I paying for college?
Because you need that piece of paper. (cry)
Network Phreak not in CS , IT field
umm she teaches at stanford I think? So basically get into a good college lol
@@networkphreak5604 True
Idk cuz it’s obviously not helping, seeing that you missed that this is a college class.
"like"... nooo, not "like". LOVE. This course saved my ass and my job a few years ago. THANK YOU SO MUCH!
edx's sql course didn't include the relational algebra videos even when the professor stressed how important they are. Thanks for uploading these.
are you sure? It's January 2021 and *edx.org* has Stanford's "Databases: Modeling and Theory" course, active. It includes Relational Algebra.
Thank you. Now I have a better understanding what Relational Algebra is.
wow in just 18 mins I was able to understand something I thought was gonna end me. Relational algebra sounds scary but after this, I'm good!
This was so helpful! Thank you for taking your time and explaining this in simple terms! You are saving my life in grad school right now! 🙌🏾👏🏾
I understood the entire Relational Algebra concept just by watching this video once. It was so straightforward and brief. Thank you so much! This video really helped me alot.
AMAZING so much better than my rubbish lecturer
I was searching to learn the same thing, but unable to find a proper video, at last this saved my time even after 8 years.
Why such Universities are respected?
Salute.
amazing how you can teach this so quickly. Now, I can't tell if it is a simple concept or if you are just a really good teacher. It's probably because you are a good professor. Thank You Very Much!
You honestly explained relational algebra better than my professor (all due respect to him). Thanks for saving me for my upcoming final.
Tbf it's weird to explain without very clear visuals, which is hard to do when some people sit so far away
9 years later, still the best explanation on youtube by far. Thank you
I love how you teach, this makes it so much simpler and easier to understand the way you explain it.
This is pure gold. Wow!
Now I Understand how professors can make big difference.
Fantastic!! I've learnt more from your lesson than at University in a whole period. Your explanation was so clear! Thanks so much!
Twenty five years working in databases, but never had to learn relational algebra. My lecturer was "substandard". Thanks, this was a great video.
"This is in fact the normal set cross product that you might have learned way back in the elementary school".
Oh I must have skipped that day to prepare for an exam on the multiples of 3...
Great video btw!
lmao exactly, do elementary schools in Cali teach set theory? 😂
I suppose that explains some things though...
I wish there were videos like this for every subject and every category because this way learning would be much better. We always need many clear examples apart from simple theory for edge-cases and so many more.
This was awesome. Thanks for the simple resource, I missed a day of class and this saved me
Good pace and finally a video with a good english speaker!
I have a Midterm tomorrow and i think i am in the right place, thank you ma'am, you are a life saver.
And this is the real beauty. I watched a lot of videos on youtube but couldn't get the real intuition but this one really helped.
Thank you for your efforts, extremely helpful!
This was an amazingly informative and helpful video until 15:00.. after that it was all over my head.
Honestly, this is the most informative session on relational algebra.
I put the video at 2x the speed and still learned everything she said. It does not get clearer than that!! Wow thnx a ton!
Amazing video, made this relational algebra stuff SOOOOO much easier to understand and digest than my professor, who just reads off the slides. Great work mam.
Who the heck would dislike this video? It's really helpful!
As expected of the finest institution and their teachers. Understood every single word. Thank you.
Thanks so much. I spent a month and a half in the class and have no idea what is going on, got it from your 20-minute video. Thanks again!
This absolutely helped me understand the topic after stumbling with the videos made by my university. Very well explained! Thank you for your service to enhancing global knowledge!
Can't get simplier than this. Perfect explanation.
Amazing lecture. I wish professors were easier to undestand like this professor.
very grateful for the resources this channel provides!
Thank you so much for explaining this subject. We just went over it in class for 1.5 hours and you nicely and simply explained it in less than 20 minutes!! Everything you said just made perfect sense :-)
This is them 11 years ago, Imagine how far they've come now; My current professor doesn't even have the energy to do these explanations on a laptop and instead writes on a whiteboard. Mind boggling to say the least.
you explained in 18min what took my teacher 4 classes to do thank you:)
Teaching is an art. and you madam is a master!!. Excellent Video by far
I wish Standford would let me take their courses for learning while still attending my college.
wow wow wow! this is 2 hours of my Yesterday’s lecture! soo clearly articulated!!
Great explanations and examples, thank you for posting this. I have to agree with everyone else saying that this is not taught well enough in our classes.
Thank you so much, this is life changing for me.
You've saved my life! Thank you so much ma'am for this relation algebra class. So clear and simple!
It almost looks like an easy topic after this
so good at teaching. my midterm is tomorrow. this saves me a bit of marks.
You are explaining so fluently and well. Thank you so much.
very expressive and learnt a lot.......
thanks a lot from PAKISTAN,ISLAMABAD....
Found 6 hrs before the exam. So helpful!!!
Thank you for some of the theory behind databases. I'm currently learning the basics of A.I.. Just wanted to peek under the hood for a brief moment.
Great video. Relational algebra was way too difficult to grasp, I wish I had this video at the beginning of the semester because this is so much more simple.
Such a clear and straightforward explanation. Best one ever about DB=)
Thank you very much for this great tutorial. I’ve read a database book on relational algebra and the text example's were unclear. This video made it easy and fun to learn.
if you know well the topic, you can teach very simple! thank you !
This video was extremely useful for me. Thank you so much!!
My university really should give money to UA-cam. They even encourage us to study using "external source" (youtube, google mostly) while shitty lecturers and inexperienced tutors are teaching the shitty contents which are never used in current industry. and I am talking about Ranked 1 university in my country. I actually tested. I never went to any lecture and i only saw lecture outline and topics and studied only through youtube+google+SO and I got A.
and they charge few K$ per paper. Exactly why geniuses drop out universities or never go to uni at all. Im not a genius so i need a degree + lot of internships on my CV to start out from graduate position. So much for a piece of graduation paper. Shitty university.
Best video on the topic ever! Bravo!
Thank you so much! I had a hard time to understand my professors script about RA. Found this video and i passed my exam for Data Knowledge Engineering Part 1. :D
Best video on RA.
excellent, couldnt have been done any better.
Thank you for this better than professors convoluted PowerPoints.
Idk why I can understand this video because my English are so bad, thank you so much!
Year 2022, January 30-- that's when i got saved.. Thanks much
TA's tell us you only understand 30% of what u hear in a lecture at my university, definetly not the case with this lecture we're just geting ripped off lmao. 10/10 lecture right here
very good lecture . everyone take a minute to appreciate the hard work :)
Very clear and direct instruction. Thanks a lot, and it saved my life as well. Good job!
Thank you so much. You’re so good at explaining these things
this is the future teaching method very effective .
Thank you for sharing your knowledge. This makes way more sense now!
Couldn't be more clear. Thank you for sharing this.
brilliant! will help me to understand the sql server optimizer much better.
Wonderfully explained. Thank you so much for the help!
You are so clear, thank you so much for posting this
Much Better than my Chinese professor, Thanks a lotttttt
this video is amazing. trash lecturers didnt put emphasis on this topic but still test so thoroughly in previous years
Awesome video! These explanations were at least 74.257% better than the ones given by my professor. THANKYOU! =D
GOAT🐐
Very good explanation, especially for the natural join!!!.
thnk you very mucch i have an exam tomorrow and i pray for you .
This was a really good! Thank you.
THANKS! this was really helpful and easy to understand.
Wonderfully explained. Makes me wish I abandoned reading those trash courses of mine earlier and found this much, much sooner.
Really helpful, you are better than my professor
Thank you for the great work
dear madame, thank you for the clear explanations and tone. This benefit me greatly ! :)
Thank you for making this video! so helpful!
For cartesian product of final natural join example: Names and GPAs of students with HS > 1000 who applied to CS at college with enr > 20000 and were rejected:
Π sName, GPA (σ student.sid = apply.sid AND college.cname = apply.cname AND enr > 20,000 AND major = 'cs' AND dec='rej' AND hs > 1,000 ( student X ( college X apply ))
excellent! amazing! ive learned everything, thank you so much!
Thank you, your video is very helpful!
this was very very helpful, thanks a lot! greetings from venezuela!
Very helpful and useful lecture. Thank you!
Thankyou so much mam