Entity Relationship Diagram (ERD) Tutorial - Part 1

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Название	:	Entity Relationship Diagram (ERD) Tutorial - Part 1
Продолжительность	:	6.57
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This is a really clear explanation of ERD's and cardinality Great job!
Comment from : Anthony La Torre

Please post as many videos as you can, do not stop doing what you doing, you are helping a lot of students and you are soo good at it
Comment from : Wahiba Laaribi

i took so many DB courses and none of them are explained this way!! omg!! thank you sooo much its ben bothering me that i do not know how relationships work you are a saver
Comment from : Wahiba Laaribi

I like your energy dude! keep it up
Comment from : TswvYim Kwm

This just makes things much easier to understand!!☺
Comment from : DARK KITTY

👏👏
Comment from : yamiles D

5 weeks of uni in 6mins
Comment from : Imaad muhinudeen

I have no idea about data even though I already read it everywhere thankyou for saving my college life!
Comment from : bobby indeyo

wonderful explanation with example
Comment from : 𝚂𝚝𝚊𝚛_𝙼𝚘𝚘𝚗𝚠𝚘𝚕𝚏

Please, what is the name of the application used
Comment from : Ayomikun Adesuyi

please my question is how do i identity the entity and attribute
Comment from : Firdaus Abdul karim

Just gained a sub these vids are great
Comment from : Da Equation

dedissengi bettuanna nurse aga mupauu😂😂😂
Comment from : SARMANSR

I finished the whole database modeling uni book and didn't get it so easily as after this video very nicely and clearly explained I love it
Comment from : 伊曼

Very helpful 👍
Comment from : Juan Miguel Arce

Loved this explanation I was wondering if anyone could help me understand @5:22 how a product could be a result of no orders? Wouldn't a product have to be a result of at least one order? I must be missing something
Comment from : Matt Kriese

tksm
Comment from : Ngọc Bùi

what an explanation! clear and easy to understand, thank you so much
Comment from : Dyan Aqlima Febriyanti

that import and export function is legit! well done
Comment from : Charles Hennings

wow, easy to understand and fun to learn, thank you!
Comment from : EinNotOptimal

Wow, the ability to convert the database models created in LucidChart into SQL statements is pretty cool
Comment from : Grim§kull

5:40 why can a product be a part of many orders?
Comment from : hamed

Beautiful explanation!
Comment from : Hannan An An

How is possible for entities to be represented as rows? I thought entities were tables
Comment from : Camilo Najera

Lucid shark?
Comment from : mishmohd

He explained it better than my university
Comment from : Cam Fio

so what is the difference between cardinality and relationships
Comment from : sunnypro1999

love the way you explain it thought
Comment from : Torika Potat

Amazing video thanks a lot
Comment from : Nora Sharkasi

Order and Product has relation ManyToMany So It should have a middle table right?
Comment from : ziat _ziat

ما الفرق بين pk و fk ؟
Comment from : Malak Wadeaa

Thank you for making it so simple!! You are amazing!
Comment from : Himam AlSsadi

OMG, this is so much better than what my professor did in 3 weeks of lectures THANK YOU!
Comment from : Morena Shepard

Wow 😳 to thanks Soo Soo much
Comment from : Rabiu Muhammed Effect

Thank you
Comment from : Hadiza Adedokun

Great for my database class! Thanks!
Comment from : James Brodski

my teachers said that the arrow is not forwarded to the actor it must finished before the actor line what is the correct discription to this statement?
Comment from : coding for ETHIOPIA

This is great 👌 I have to watch this before I go to my campus tutorials
Comment from : Faith Jebet Kiprono

I'm an aspiring data analyst, and I'm trying to understand Databases This is a great tutorial to begin with it
Comment from : Jonathan García Silveira

Crisp, clear, and concise Exactly what a tutorial should be I'm learning this in class right now, and I've learned more in this short video than hours of classtime Well done, sir
Comment from : Joel Heiser

Wonderful video the concept is broken down and explained in easy wayThank you
Comment from : Madhamsetty Preetham

The order to product relationship is wrong I think you have to reference the products from the order table Otherwise there's no relation at all
Comment from : fb

@2:20 in the video: isn't an entity the entire table, and an instance is a row?
Comment from : jbgoogl

I've watched all sorts of videos on ER diagrams and yours is the most concise and clear of them all by far
Comment from : Jonathan Maner

thanks for the video Why Product - Order relationship is one to many, not reverse? Like one Order can have many Products?
Comment from : Karina Hulka

Easy to understand! :) Thank yoU!!
Comment from : yves eleazar

Thoroughly concept taught 🍁
Comment from : Sainu TheRaaper

I'm confused, I thought what makes a person a customer is that they're gonna order something So how can there be a customer with zero order? Pls can explain it🙏
Comment from : G_forWHATT

really good video one question tho, why is "one and only one" a thing, if there's already "one" and "one or many" wouldn't "one" just mean "one and only one"
Comment from : Piyumath Siriwardena

nice one sir Thank you for the knowledge But i can't import anything with free account on lucid
Comment from : Blessing Ezinne Ezenwadiugwu

I have my exams tomorrow These cleared a lot from my head Wow
Comment from : Eugene Ishado

Omg, thank you very much!!!! I don't speak English, but I understood everything! Incredibly well explained, thank you! I send rays of luck and goodness!!!💫💫💫
Comment from : Александра Санджиева

Just wow Broke it really well 🔥🔥🔥🔥
Comment from : Jeff U

This makes much more sense as IT College student Thank you!
Comment from : Paul

First timer and newbie to SQL - Wow 5 years later and the quality of this content is great!
Comment from : Anastaysia C

The Business Analysis Doctor - IIBA Certification

Nice job explaining this in a simple way! I like to discuss the various levels of detail when teaching this I think it helps clarify some of the different attribute formats
Comment from : The Business Analysis Doctor - IIBA Certification

thanks i think i finaly understand cardinality
Comment from : Kiran Kok

very understandable Thank you
Comment from : Anh Duy

You do have a gift for making complex simple and funny trust your gut, start your own training business and make a lot of money
Comment from : Kevin Harrington

wowwhat an easier way of explanation for the conceptsthank you so much for such a wonderful video!!!
Comment from : Raj Khare

better than class
Comment from : Ahmad Nurruddin Zainori

Thanks for the clear explanation & great examples!!
Comment from : 陳泳蓉 Stephanie Chen

💯
Comment from : Crewify

this is superbly demonstrated, well done!
Comment from : Will Lochhead

Thanks, that was short and helpful ❤️
Comment from : Mohammad Al Hallaq

Wow! This was awesome! Thank you!
Comment from : Aaron 艾哲思

Hi! WHat program do you use to create this ER DIagram?
Comment from : Maria Sofia Amenabar Edwards

clearly explained, nicely done
Comment from : Phillip Vincent Alboleras

Im confused how come a customer can have 0 orders?
Comment from : No Shards

Why it cant be zero-one an order can have a zero customers or 1 customer?
Comment from : Lad from KARAK

You are so clear ,that it's very easy to understand it Thank you
Comment from : lovely jyotsana

And people who worked for decay in IT industry are saying that this is just stupid crap, and you should write code instead of writing labyrinths And code has benefits of IDE navigation
Comment from : Dadlord

Is it weird that i'm watching this for high school IT?
Comment from : Joyful Mbokazi

I'm currently taking the Google data analytics course and this is so helpful! I'm a teacher and believe me you do an amazing job Super clear and concise, I hope you realize how much you're helping people like me!
Comment from : Paul Buono

Which tool have you used to draw the ER diagram in this video?
Comment from : Raghavendra Maiya

Is it possible many to many cardinality?
Comment from : lee 056

THANK YOU!!
Comment from : Juliana Castano

Thank you for nice explanation It helped me a lot for my project in college Thank you !!!!!
Comment from : Mekhala Karunaratne

First mistake is @1:55 The 'CustomerID' attribute (or Field name) in the 'Customer' table should be a Primary Key (PK) in order for you to apply 'Relational Integrity' (RI) to other tables via this field Second mistake is when the customer's name is in the 'Customer' table it is NOT needed as a field in the Orders table Granted that field could be used as the name of the person the items are being shipped to but in that case it should be names accordingly (eg 'Ship_To_Name') Note that the address fields would be needed because the ordered products may need to be shipped to a different address as well as to a different name (see above) than that of the customer
Comment from : DiGiaCom Tech

am glad have got this wonderful tutorials ,, have a long struggle please share more
Comment from : Isaiah Bundi

l'm just gonna say, Database concepts and designs are totally and utterly useless bullshit
Comment from : 24masks

perfect explanation LOVED it THanks!
Comment from : Fuad Qaribli

thanks man you're a star
Comment from : doreen chirume

What's the difference between "one" and "one and only one"?
Comment from : Erik Martines Sanches

Thank you very much 👍👍
Comment from : لا حول ولا قوه الا بالله

how can one product create many order(bc the quantity of same product)?
Comment from : Chormun

what is the difference between "one" and "Only one" is that not the same? one can only be one?
Comment from : Lenny Fredriksson

thank you :)
Comment from : Cursed

I am taking a database course right now and have to make an ERD This tutorial was immensely helpful Dude, you explained it so well that I actually understood it Thank you so very much!!
Comment from : Snow Bunny

This is the channel worth subscribing Thank you for the clear tutorial
Comment from : Mark Williams Brown

I am interested in the modeling of Express Data Models (ISO 10303-11) does lucidchart work for these data models or their Express-G graphics?
Comment from : Timothy Suhr