This video isn't really about an ER diagram. It is talking about a "relational model". An entity/relationship should not be talking about primary key or a combination key and such relational database terms. E.g. "An employee works for a department" - there are two entities "Employee" and "Department" and the relationship is "works". So you should pick the 'entity' icon on the left (rectangle), and the relationship icon on the left (diamond shaped). Then you draw the cardinalities (one-one, one-many.. etc). Between the rectangles (entities) and the relatioship (diamond), you draw the cardinality lines (one, many, etc).
an interesting explanation of ERD, step by step in a simple, slow way that makes it easy to understand, thank you Mr. Dr. May Allah increase your knowledge
OK, and how do I create a composite PK which consists of 3 fields? Anything I try, it puts it in a different row that is divided by a horizontal line. I'm unable to put 3 PK's between two horizontal lines. Like the two PK's in the EmployeeSkill here, only I want a 3rd one in there too. How to do that??
This is not an ER diagram. It is a relational schema. ER diagrams are part of the conceptual database design and aren't related to a specific database type.
Thank you for this step-by-step demonstration of constructing an ERD. It is explained in a very simple way for beginners like me to understand and follow. Appreciate your tutorial.👍
Thanks for a nice explanation of draw.io Please do not add 'music' in future videos as it is distracting a lot for hearing impaired people. If possible, remove in this one.
I got an exam and it says: In this worksheet you will practise normalising data to produce an ERD from a paper-based record. So I have to do the same as you done or I need to uce access
My crapy teacher tells everyone to label the line, and don't make it looks like a process. What can I say, I just write all 'has' customer has payment detail, the bank has payment detail and team member has the payment detail, fuck
This video isn't really about an ER diagram. It is talking about a "relational model". An entity/relationship should not be talking about primary key or a combination key and such relational database terms. E.g. "An employee works for a department" - there are two entities "Employee" and "Department" and the relationship is "works". So you should pick the 'entity' icon on the left (rectangle), and the relationship icon on the left (diamond shaped). Then you draw the cardinalities (one-one, one-many.. etc). Between the rectangles (entities) and the relatioship (diamond), you draw the cardinality lines (one, many, etc).
an interesting explanation of ERD, step by step in a simple, slow way that makes it easy to understand, thank you Mr. Dr. May Allah increase your knowledge
4:58 thank you! I was looking for this :)
same lol is there a way we can copy and paste attribute names into the rows?
OK, and how do I create a composite PK which consists of 3 fields? Anything I try, it puts it in a different row that is divided by a horizontal line. I'm unable to put 3 PK's between two horizontal lines. Like the two PK's in the EmployeeSkill here, only I want a 3rd one in there too. How to do that??
AMAZING tutorial, very concise and very well explained! I will have fun now creating tables for my PostgreSQL database!
Is it entity relations or crows foot
👍
This is not an ER diagram. It is a relational schema. ER diagrams are part of the conceptual database design and aren't related to a specific database type.
Ryt
thank you so much, the hotkey CNTRL-return saves me so much time
enter* since im on windows but u get da point thank u
Thank you very much for this nice tutorial. Very professionally explained!
Thank you. Very informative. I was struggling to use it. But now i'm confident enough to draw erd.
Lose the annoying and unnecessary muzac track.
@Dr. Daniel Soper, Can you please make a physical entity diagram? I am kinda confused on how the logical and physical are different
Yes please
👍
can you add more columns to the relationship table? or only rows?
Hello, very helpful video and loved it, but how do you add more columns to the table to fit more attributes?
Thanku very much it was really helpful 👍😉🥀🥀❤️❤️
hey really appreciated your sentiment analyser wanna talk a little more about can i get ur contact ?
Thank you for this step-by-step demonstration of constructing an ERD. It is explained in a very simple way for beginners like me to understand and follow. Appreciate your tutorial.👍
UGH! The music!!! 🤮
The schoupenhauer. Thank you very much, your videos has been helping me a lot..
jajaja wesbrok y lebrom juegan tan iguales que los dos engañan con numeros
Thanks for a nice explanation of draw.io Please do not add 'music' in future videos as it is distracting a lot for hearing impaired people. If possible, remove in this one.
Agree it would be better without music - very nice tutorial but I found the music distracting and annoying, entirely unnecessary.
nao achei em portugues, vai em ingles mesmo kkkkkk
I got an exam and it says: In this worksheet you will practise normalising data to produce an ERD from a paper-based record. So I have to do the same as you done or I need to uce access
Arrange > Insert > Advanced > CSV
Then insert your SQL statement (there is an example) and you're halfway there.
Is it possible to fill in the table names and column names via a csv or excel upload?
My crapy teacher tells everyone to label the line, and don't make it looks like a process. What can I say, I just write all 'has' customer has payment detail, the bank has payment detail and team member has the payment detail, fuck
lol
How to generate the SQL for the models?
Many thanks Sir!
Hi, can you export the model to a sql script?
Thanks a bunch for the clear explanation!
Thank you so much. i was completely stuck. You Saved a soul from headache
can we connect data and automatically create erd
Apakah bisa untuk mengatur garis sparator
Cool!
HOW TO JOIN TWO LINES FROM DIFFERENT TABLES THAT POINT TO THE SAME PRIMARY KEY ON A TABLE WITH SAME CARDINALITY?
Thank you so much. It helped me lot.
This video is very helpful for me who is learning DBMS in college. Thank you for your video!
thank you sir
Excellent clean explanation...Thank you very much Dr. Daniel
I'm really thankful with you, I needed add a new attribute!!!
Dr Soper, your presentation are ever on point!
Thank you so much.
super amazing video, cant resist to watch & like.
thankyou sir for your bright explaination about erd
very useful video....Thanks a lot
Yeah, very intuitive to add a row... Thanks!
What app is this?
This was very well presented! And helpful!
this... is... a... LIFESAVER THANK YOU!
Thank you it has been really helpful for my assignment. For the lines though, why not just use "duplicate" instead of copy and paste?
So helpful, thank you so much, I
TG for TH-cam, amazing video
Thank you for this, my teacher sort of threw us this program without explaining how it works at all. Very helpful!
Great....Software...and also nice explanation
Thank you for this. I was bumbling through it until this tutorial. What a difference!
the sound is not good I am quite disappointed
Thanks a lot for the tutorial. One of the best offline tools for database design well explained
Thank you so much for this demonstration. You make things very easy to understand and reproduce. Thank you!
What a fantastic explanation, thanks a lot👏💯
thanks very much
Thank you very much for your video!
I couldn't figure out how to add rows but now I know. Thank you for the tutorial.
Very useful video, thank you for your sharing!
Thank you for the info. Easy to understand
Thank you so much for this quick introduction! Very useful for me, to do my first drawing!
Thankyou. This is so Clear tutorial
Thank you sir
Thanks so much. it was a quick and very helpful tutorial.
Thank you, great tutorial
Damn it's really helpful
Thank you very much you save me
thanks a lot...it's helpful
Very nice and beginner friendly tutorial. Well done.
Thank you
The music is so annoying
Thanks for this tutorial
thank you this is very clear and got me up and working quickly
Very well defined . Good Job
thank you
how to add new line .
This was perfect, thank you!
Thank you sir.
Thank you for tutorial, it's really useful
One Question. In the Logical Model E-R, In the table i can put of type data???
I think you add the data type in your data dictionary
tks so much !
Which app
Muchas gracias
thanx bro
thanx bro'
thanks mate you safe my life
Thanks man.
Thank you!
thank you
is this free?
Excellent! Thank You!
Thanks!
Very useful
Thanks
thank you very much for this nice tutorial
Good vid!
Thank you Dr. Soper! I'm including your video in the materials for my SQL course.
thank you Sir !