Dear Dr Daniel I just wanted you to know That I am a computer science student who lives in Syria With very Poor financial conditions so I cannot afford for private tutors to teach me dbms I'm so grateful for the high quality knowledge you provide here for free Words cannot describe how thankful I am Wish you all the best
@dgenerationbigestfan Жыл бұрын
please keep us updated on your progress. Us here are interested in how you end up!!!
@ziadcs5309 Жыл бұрын
I appreciate your kindness, the situation here is very bad in all aspects, unfortunately I'm just doing the bare minimum to pass my courses at university, the electricity here is available only 3/24 (three hours a day at its best), I think I'm graduating next year, but I think its hard for me to get to the real job market, I may start learning web development (in case things does not go worse!!). thanks for your comment again it made my day, wish you a nice day @@dgenerationbigestfan
@Blue4736.5 жыл бұрын
Requirements to ER model 5:15 Entity class v entity instance 6:50 Entity class v entity instance visual 10:30 Attributes 11:20 Identifiers [keys] 13:10 Types of keys 13:50 Level of entity attribute display 16:45 Relationships 18:50 Conceptual unary relationship 21:20 Conceptual binary relationship Conceptual ternary relationship One or many connections 23:12 One-to-one binary relationship 24:10 One-to-many binary relationship 25:00 Conceptual many to many binary relationship Note: can’t build a direct conceptual many to many in a db. Need a middle table….extra entity 25:40 Conceptual many to many binary relationship/ extra entity 26:50 Maximum cardinality 27:20 Minimum cardinality 28:40 Crows foot symbols 29:20 Cardinality example 33:20 Er diagrams 34:40 Has -a-relationship 36:00 Strong and weak entities 36:30 Id-dependent weak entities 38:00 Weak entity relationships 40:00 Weak entity identifier/ non-id dependent 41:30 42:10 Subtype entities 44:00 Subtype entity identifiers 47:30 Subtype entity examples Recursive relationship 53:00
@joannaglasby25963 жыл бұрын
Hero status unlocked!
@MelancholyMadoka3 жыл бұрын
You dropped this crown, @Warren L.
@GameFraper9 жыл бұрын
Paying 9 grand for uni and get a useless pdf as a resource. Pay nothing for an hour long, detailed, easy to understand video. This is just so wrong
@ervincasiguran9 жыл бұрын
i feel you
@BraulioCespedesAcosta9 жыл бұрын
Fedil Al-Hayawi That's the new model of education. The same thing happened to me. I got a book of data base design from the library, Too complex for a beginner, but this video make thing easier.
@meyerjohannes8 жыл бұрын
+Fedil Al-Hayawi It's a f***ing scam. I decided not to buy any textbooks this semester (except for one that I found an older edition for $5). It's so frustrating, they release new editions every couple years, and the only thing that changes is maybe the introduction and the end-of-chapter questions! And then when you finish the course, a $250 book is suddenly worth $60. Better to rent, but it's still a rip off. About to graduate, and the whole time I'm thinking when I walk the dean is going to hand me a paper, saying "here's your receipt".
@vayunandu7 жыл бұрын
well said!
@promisennanemere45 жыл бұрын
I understand you bro. It can be that bad.
@mgray9994 жыл бұрын
You're better than my prof. I've been anxious about this class because the lectures cover just spouts of info and not the details. Thanks for this!
@sabanaar9 жыл бұрын
Thanks a lot Dr. Soper, best coverage on the data modeling and the entity-relationship (ER) model I have ever seen. You are one of the best teacher I have ever had.
@oreed8 жыл бұрын
Dr. Soper, you are a great teacher. The content is so clear and easy to understand, the way you explain things is so logical, and your examples really help. Thank you for this!
@ginaonline837 жыл бұрын
I've taken 2 database classes in the past but I've learned so much from your series of videos than I've learned in the classes, very detailed and easy to understand, thx u so much.
@SRHarkreader8 жыл бұрын
Thank you so much Dr Soper; this is hands down, the best ERD tutorial I've ever watched. Great job!
@hkrumble6 жыл бұрын
Dr. Daniel Soper, thank you so much for this. This is by far the most clear, lucid explanation of data modeling and ERDs I've come across. Fantastic!
@lilitanikushkina11947 жыл бұрын
Love everything about your lectures - the pace, the material, the structure, presentation and also the manner of speaking. Huge thanks!
@bindenlibejohn7378 Жыл бұрын
If it must be done, It must be done well. Dr. you did it all . from simplicity through clarity to comprehensiveness. Bravoo!!!!!
@prfgee87887 жыл бұрын
Your method of presentation is second to none and your explanation is top notch. You deserve an award. Thank you!
@agofpos9 жыл бұрын
37:07 "Any entity that is not a weak entity is called a strong entity" Very helpful.
@jimb65542 жыл бұрын
At 20:56 I was having difficulty with the Person entity relating to itself with marriage. I was thinking “Aren’t 2 different entities getting married?”. Then I resolved the difficulty by realizing that A person entity is a table. While an employee table relating to a parking table is a binary relationship because it involves two tables, one person instance getting married to another person instance is a Unary relationship because it involves just one table which is why we also call it a reflexive relationship.
@hauteswan25418 жыл бұрын
This is a great addition to my non-lecture database class. I will recommend it to my class. Thank you.
@streetdogg44066 жыл бұрын
Kimberly wow. How easy is it being a teacher?
@scienceklinic4584 Жыл бұрын
Saved the video in 2018 and watching in 2022. What a gem! Thank you so much, prof.
@jephthah23476 жыл бұрын
This is the best tutorial on this topic you'll find on the internet
@tiyezx59937 жыл бұрын
Just came across your tutorials today after years of many challenges learning databases. I'll return to give feedback. Very positive comments so far about your work. Thank you
@pajhume10 жыл бұрын
Very clear and concise. Video elaborates on specific details that are critical to understanding the subject matter. A+ quality. Deeply appreciative of your generosity!!!
@caseyobrien10828 жыл бұрын
Why hasn't my prof done anything like this? I'm having to scour the internet to find a lecture on the subject. My professor just has us read the book, then gives us assignments. He offers no other learning resources whatsoever. Thankfully I've found this.
@GloriaCopeland5635378 жыл бұрын
Same here
@bhatz8297 жыл бұрын
My professor doesn't even speak to me. Been asking about what I should do. I get this video. This isn't even on the chapter I am learning.
@noniboi16735 жыл бұрын
My lecturer just gave us a pdf, which were slides from THIS series. huehuehe
@JFrameMan10 жыл бұрын
Very smooth and understandable explanation. Thanks a lot.
@SrkySrky10 жыл бұрын
This is gold. The best lessons on KZbin.
@christopheropara60836 жыл бұрын
I thank God for creating people like you.
@pikkosaksa10 жыл бұрын
a joy to refresh and learn with Dr. Soper. Thank you!
@aaronsalifukoroma79942 ай бұрын
I appreciate your careful systemic explanation
@jimc14998 ай бұрын
Dr. Soper thank you for this great video series.
@binti38816 жыл бұрын
this is the best video on Data Modeling . very clear and explanatory. well done prof.
@karnabudhathoki53114 жыл бұрын
I have no formal training on IT.yet these lectures give me an insight into the IT world...Thanks...from Nepal.I am learning a lot...
@scottmacnevin35557 жыл бұрын
You have a teaching gift - like many others who have furnished a response - I currently study this topic at University. The teaching at my facility just isn't up to this standard when it comes to imparting concepts this clearly...I am almost at the end of your fourth video and feel I have such a good grasp of the concepts involved. Thank you
@neetuarya225210 ай бұрын
Thanks a lot Dr. For this really informative lecture. Have a good day
@tvd18266 жыл бұрын
Thank you Dr. Soper for this presentation. It has been a great help!
@_devParty5 жыл бұрын
Thank you Sir. This is still relevant and informative in 2019
@nareshpuppala15444 жыл бұрын
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@madiyarabdukhashimov85704 жыл бұрын
I have studied all those things at the university and I had no idea what the heck I was studying. I could barely get B0 (B-) for all preparing tests and exams with many not sleeping nights. I was just happy not to get FAIL. I have been watching this video with 1.5X speed and can't believe everything is so well explained and easy to understand!)
@gideon17you5 жыл бұрын
Dr. Soper, this is excellent. Thank you very much.
@vbreddy8009 жыл бұрын
That is is great lecture I ever had before. Thanks very much Dr. Soper.
@nandhi198 жыл бұрын
Valuable learnings keep life FRESH😊 Thank you for your valuable lessons🙏
@kaizhou827810 жыл бұрын
Thank you so much Dr. Daniel Soper.
@M00nShad00w8 жыл бұрын
Thanks god for a video in KZbin I can understand
@fksheke19 жыл бұрын
Thank you Dr Soper. This is really amazing. God bless you.
@jim-ngormohkamara48056 жыл бұрын
Dr. Soper you are a life saver
@VinaySesham8 жыл бұрын
Excellent. Explanation is so simple and effective.
@geetatiku10 жыл бұрын
Very useful.. Explaining it in a very simple way.. Thank You Dr. Soper.
@chaitanyavs6 жыл бұрын
Thank you for this amazing lecture series! One feedback- I'd love to see more examples of how to read the diagrams depicting entity relationships- You explained the concept well but some more examples would help the viewers
@fmartinez0045 жыл бұрын
I took introduction to Oracle SQL and this is bringing it all together for me.
@BobTheBob6479 жыл бұрын
Thank you for these videos, they have been incredibly helpful.
@xolelamqikela45347 жыл бұрын
Writing business systems and analysis test in 12hours, thanks to Doc im gonna nail it
@manhungchan54474 жыл бұрын
Well done, Dr. Daniel Soper.
@bettyseyfu81405 жыл бұрын
Thank you so much Dr.Daniel Soper, this is the best use full and understanding lecture I never had i'm thank full! if you have more continuing database lesson 9 Ext
@gramirom2 жыл бұрын
Amazing series Daniel! Thank you very much
@vadanmehta7849 жыл бұрын
Dr Soper.. thank you very much for knowledge.. u made things so simple ..wow :)
@kanchapagimhara5845 жыл бұрын
Great,perfect explanation.One of the best video tutorial in the youtube I have seen,I improved my Englilsh also as an extra benefit.
@ajharrisTX8 жыл бұрын
Great presentation; well-spoken and thoroughly informative. Will definitely utilize your videos to supplement my AIS course!
@sohaibkhan88356 жыл бұрын
Thank you so much Dr. Soper!
@bedbathorybeyond9 жыл бұрын
I am very stoked on these videos.
@srv14evr8 жыл бұрын
You are an awesome teacher!
@fred.chapman5 жыл бұрын
*DR. SOPER* , I am learning a great deal from your lectures! I believe I found a small mistake at 52:52 and 55:03. In the recursive (unary) relationship between employees and managers, an employee need not have a manager (e.g., the CEO has no manager), but each manager must supervise at least one employee _and may supervise many employees._ So, the crow's foot symbol next to the employeeId attribute should have a cardinality of *one-to-many* , not one-and-only-one. Is that correct? Thank you!
@GlebLobanov4 жыл бұрын
I have the same question.
@thomasjust26632 жыл бұрын
Who asked you id_ot
@fred.chapman2 жыл бұрын
@@thomasjust2663, if another person's intelligence, knowledge, and ability make you feel so threatened, inadequate, and inferior that you become rude and insulting and lash out for no reason, then you have a real problem. You need to get help with that. I want you to talk with someone you trust, like a close friend, counselor, or therapist, to figure out why you are so desperately unhappy. You'll never find happiness by trying to tear other people down. You need to believe in yourself, invest in yourself, and build yourself up. I did it, and you can do it too. Will you try, Thomas?
@junaidmughal38062 жыл бұрын
I think you are right
@radocisar34202 жыл бұрын
p 9
@csanadkozma75388 жыл бұрын
Awesome vid! Now I understand the giant 20-30 entity diagrams in my work.now All I have to do is memorise them!
@Cswaleomatic4 жыл бұрын
Thanks a Million Professor!!!! God bless you.
@anvikshadixit46747 жыл бұрын
Very informative lecture . i was able to understand the data modelling in much better way. Thank you sooo much for making such a great video with great explanation. :)
@samanthapikus31787 жыл бұрын
Thank you so so so much!!! My textbook is written poorly. Also, I now even understand objects and classes better. Thanks!!!
@parthpatel42213 жыл бұрын
very very useful, and easy to understand and in easy language. thanks
@emperoy88 жыл бұрын
Great man done great Job. Thanks Dr. Soper
@kevinpaul328510 жыл бұрын
Great work on the video series. Very informative.
@2002egncn2 жыл бұрын
Awesome series. Thanks so much!
@deepakpathak93684 жыл бұрын
Great Videos and Very informative for building good concepts. Thanks.
@BrokkoliSchleuder10 жыл бұрын
wow, in this way (and length) every youtube video lesson should be. Nice!
@medbee60677 жыл бұрын
very well explained Data Modelling and Entity Relationship Model. Thank you
@delroyfrancis449110 жыл бұрын
Thanks for all you do;
@rotopercutorash7 жыл бұрын
very nice video! thank you for taking the time to share your knowledge. However, I had to speed up to 1.5 as i found it to slow but that is probably because i had too much coffee. Works like a charm
@harryk131710 жыл бұрын
Thanks for the excellent presentation!
@theamazingspiderplan10 жыл бұрын
Thank you Dr. Soper!
@0xatul Жыл бұрын
Great Lecture
@ubongessien493410 жыл бұрын
Thank you for this presentation, this was very helpful.
@zegeyewoldemariam95189 жыл бұрын
that's really amazing God bless you
@Karmidzhanov925 жыл бұрын
For the last example, the diagram reads that an employ can have ZERO OR ONE manager (with which I agree) but a manager can have EXACTLY ONE employee (showed with the two hash marks) which the following illustration clearly proves wrong (as a manager had three employees under him) Did I miss something?
@Karmidzhanov925 жыл бұрын
Well asking the question I think I answered myself - managerId can be NULL, but a managerId HAS TO be one and only one employeeId
@BraulioCespedesAcosta9 жыл бұрын
Thanks, Professor.
@Steve-zz5ds2 жыл бұрын
This series was highly recommended to supplement my DBMS course....but that microphone static in this video is incredibly distracting.
@weiniu54009 жыл бұрын
Very helpful! Thanks a lot for sharing!
@autumnking10010 жыл бұрын
Thank you. Very well explained.
@ayca74014 жыл бұрын
great explanation!
@NwankamaNwankama10 жыл бұрын
Excellent presentation
@popularcomments32729 жыл бұрын
thank you dr for this amazing content
@silmankhan58329 жыл бұрын
thank you very much !! very clear tutorial
@fathik197211 жыл бұрын
Great presentation. Thank you
@dudet159517 жыл бұрын
Great videos!
@priyankakushwaha16478 жыл бұрын
Thank you Professor
@uksanjay10 жыл бұрын
great presentation it was helpful
@tim3laps3 Жыл бұрын
I gave you a like for using Fry, Leela, and Bender!!!
@tamimhekmatpey27299 жыл бұрын
Very helpful teaching presentation, above all I admire your good intention for sharing it with the public. Is there any other subjects or topics on your agenda? - Thank you.
@ibrahimmahamud17517 жыл бұрын
Great information about databsa
@jazzyf96333 жыл бұрын
superb!
@zzhomeboy110 жыл бұрын
Thank you for the lesson!
@Regalert6 жыл бұрын
The guy is great!
@benayadsaid51673 жыл бұрын
Thanks a lot
@KarthikRampur-ql2td6 жыл бұрын
great video.
@ardaguney36788 жыл бұрын
Thank you for the video.
@eq62229 жыл бұрын
great video, but lots of distracting microphone noises
@ChrisJones-eb5pg6 жыл бұрын
I'm going through the comments to see if anyone else seemed to have as big of a problem with it as I did! I'm using noise cancelling headphones so each scratch is like nails on a chalkboard and makes this hour video feel like three hours!
@sschiavo81905 жыл бұрын
Thank you!
@msjyousif8 жыл бұрын
Thank you
@srest01739 жыл бұрын
For the model you showed with undergraduates and graduates, how would you prevent losing the data about a student who goes from undergrad to graduate considering each one has their own specific attributes?