Want to improve your database design skills? Get my Database Design project Guides here (diagrams, explanations, and SQL scripts): www.databasestar.com/dbdesign/?
Videos like this are way more useful than the other bog standard stuff that litters the web - rather than over-explaining 'how to query a, b, c, d and e', your videos cover the more important fundamentals like how to design relational databases properly. The querying can just be googled as you develop, but leaning how to design a database cannot be googled so easily. Thank you
I like your video. I have been studying databases for some time, and I've come across tutorial project videos on UA-cam. This is one of the best videos on designing databases on UA-cam!!!
your video was absolutely helpful compared to class lectures about database management, do you have anything on how to design (even with pen and paper) other kind of relationship between tables? Thanks a lot!
Thanks! I've got a couple of videos on my channel about many to many relationships, and one to many relationships. I've also got quite a few examples of designing a database, such as AirBNB or Instagram or school management.
@@DatabaseStar You're welcome...Words can't express how happy I felt when j went through some of your database videos...They were so helpful. Good job sir🙌
Hi there, thanks for this! I was wondering how we can do with multiple patients at the same time, perhaps create a separate table of patients and how will we identify other patients from that table list?
Glad it helped! Yes, you would have a separate table in between patients and appointments to store the patients for each appointment, as it is now a "many to many" relationship.
I am trying to learn something. Lets say someone gives me some requirements how can i make a DB based on that. Or if have a DB how can i change it if somethng happnes therre must be some rules or theory. Like Pivot tables that connect 2 tables etc
This video shows you how to create a database design from an idea or from requirements. I've got a few other examples on how to do this on my channel as well. If you have a database and you need to change something, you would follow the same process. But it may be more complicated as you need to understand what is happening at the moment.
@@DatabaseStar I think i need to Learn about 1-1, 1-N, N-1, N-N and when to use join table "pivot table". I think when 1-1 use foreign keys for everything else pivot table but i don't know how exactly. And i need learn normalization.
Hi, Can you make a video about the mapping between tables to avoid teh infinit recursionStachOverflow problems? especially @manytoOne and @OnetoMany in each side of the tables
@@DatabaseStar I mean when 2 entities have bidirectional relationship: manytoone from 1side and onetomany from the other side, when serializing the 2 entities I get the erro: infinit recursionStackoverflow, I found solutions (like jsonmanagedreference and jsonbackreference) I'm wondering if there is a better way of managing the mapping, I've also read that OneToMany is to be avoid, because the entity loads list of the other one, so it leads to performence issues, is that correct? Thank you
Thanks for clarifying. I assume you're using Java, but I'm not that familiar with these errors. A one-to-many database design is very common and is actually a good thing to have in a database. For example, one supplier has many products, one customer has many orders, one social media post has many photos. Regarding the "bidirectional relationship", does this mean that you have two tables, and they have two relationships between the tables (instead of one)?
Want to improve your database design skills? Get my Database Design project Guides here (diagrams, explanations, and SQL scripts): www.databasestar.com/dbdesign/?
Videos like this are way more useful than the other bog standard stuff that litters the web - rather than over-explaining 'how to query a, b, c, d and e', your videos cover the more important fundamentals like how to design relational databases properly. The querying can just be googled as you develop, but leaning how to design a database cannot be googled so easily. Thank you
Thanks for the feedback and glad you found this useful!
This is one of the best straight-to-the-point videos on designing databases on UA-cam!!! Amazing!!!
Wow, thanks! Glad you liked the video and found it helpful!
most under-rated topic for web developer , keep-up the good work.
Thanks!
I like your video. I have been studying databases for some time, and I've come across tutorial project videos on UA-cam. This is one of the best videos on designing databases on UA-cam!!!
Glad it was helpful!
that's just exactly what i needed. tons of questions answered. God bless you.
Glad you found it helpful!
This amazing brother. No one is talking about these types of fundamental topics. This video is so helpful. Keep up good work.
Thanks, glad you like it!
The best channel to learn db design, thank you so much!
Thanks!
OMG, finally, your videos are so helpful, I was looking for a while. Thank you so much!!
Glad you like them!
One of the best video . Very lucid to understand. ! Thank you from bottom of my heart. :)
Thanks, I’m glad you liked it!
You deserve more likes and subscribers
Thanks!
This video was incredible! Thank you so much!
You're so welcome!
Wow what an amazing explanation!!!
Glad it was helpful!
I‘m starting out right now and this video is really helping, thanks a lot
No problem, glad to hear this video is helpful!
Thanks needed this for an assignment!
Glad it was helpful!
your video was absolutely helpful compared to class lectures about database management, do you have anything on how to design (even with pen and paper) other kind of relationship between tables? Thanks a lot!
Thanks! I've got a couple of videos on my channel about many to many relationships, and one to many relationships. I've also got quite a few examples of designing a database, such as AirBNB or Instagram or school management.
Ben your videos are amazing!
Thanks!
Wow! Super helpful video man. I wish I started here first....
Glad it was helpful!
Good teacher ❤
Thanks!
Extremely helpful!
Glad to hear it!
This is exactly what i need right now :)
Glad it was helpful!
This was helpful, although I have a massive database I’m planning. Maybe I will need to break it down into small chunks as I go?
Thanks! Yeah breaking it down will be helpful
Excellent Video!
Thank you very much!
Great video...I absolutely loved it... You're doing a great job...
Thank you so much!
@@DatabaseStar You're welcome...Words can't express how happy I felt when j went through some of your database videos...They were so helpful. Good job sir🙌
Keep up the good work! 👍
Thanks!
i love this thanks!
You’re welcome
Hi there, thanks for this! I was wondering how we can do with multiple patients at the same time, perhaps create a separate table of patients and how will we identify other patients from that table list?
Glad it helped! Yes, you would have a separate table in between patients and appointments to store the patients for each appointment, as it is now a "many to many" relationship.
Awesome sir love from india
Thanks!
absolutely amazing, !!!!!
Thanks!
Great video
Thanks!
Great video!!
Thanks!
Hello, nice tutorial.. what software is this? Would like to learn from you.
Thanks! The tool I used is called LucidChart.
You are really amazing, thanks 😊
Thanks!
Your videos are awesome
Thanks!
Thanks man.
No problem!
Great video
Thanks!
have you lectures on oracle apex complete series?
Unfortunately I don’t, as I don’t have any experience with apex
If you know someone good at apex, can you recommend (channel, lectures)
I am trying to learn something. Lets say someone gives me some requirements how can i make a DB based on that. Or if have a DB how can i change it if somethng happnes therre must be some rules or theory. Like Pivot tables that connect 2 tables etc
This video shows you how to create a database design from an idea or from requirements. I've got a few other examples on how to do this on my channel as well.
If you have a database and you need to change something, you would follow the same process. But it may be more complicated as you need to understand what is happening at the moment.
@@DatabaseStar I think i need to Learn about 1-1, 1-N, N-1, N-N and when to use join table "pivot table". I think when 1-1 use foreign keys for everything else pivot table but i don't know how exactly. And i need learn normalization.
why u don't do generalisation principle
What do you mean by "generalisation principle"?
I think it’s called normalization
plz help share available databases if you dont mind
What do you mean by available databases?
What software is this?
This software is called LucidChart.
GOAT
Thanks!
God bless u
Thanks
max
Glad you like it (I think!)
Hi,
Can you make a video about the mapping between tables to avoid teh infinit recursionStachOverflow problems? especially @manytoOne and @OnetoMany in each side of the tables
What do you mean by recursionStackOverflow problem? I have a few videos on joining tables that may address it.
@@DatabaseStar I mean when 2 entities have bidirectional relationship: manytoone from 1side and onetomany from the other side, when serializing the 2 entities I get the erro: infinit recursionStackoverflow, I found solutions (like jsonmanagedreference and jsonbackreference) I'm wondering if there is a better way of managing the mapping, I've also read that OneToMany is to be avoid, because the entity loads list of the other one, so it leads to performence issues, is that correct?
Thank you
Thanks for clarifying. I assume you're using Java, but I'm not that familiar with these errors.
A one-to-many database design is very common and is actually a good thing to have in a database. For example, one supplier has many products, one customer has many orders, one social media post has many photos.
Regarding the "bidirectional relationship", does this mean that you have two tables, and they have two relationships between the tables (instead of one)?