EF Core 6 🚀 Database First / DB First (Entity Framework Core 6 / .NET 6)

[@PatrickGod]

🚀 Join the .NET Web Academy with a 30% discount - closing soon! 👉 www.dotnetwebacademy.com/courses/academy?coupon=dnwas23yt

[@hyd119]

If you are interested in getting paid something and helping me get used to some legacy dotnet core things let me know :)

[@CiaranCorrigan86]

Great coincidence; this is exactly what I am looking for right now after watching an older video of yours last night, about WebAPI & EFCore.

[@PatrickGod]

Perfect! Glad I could help! 😄

[@user-gg4bg2vi3t]

Your videos are incredibly practical and easy to understand. Thank you so much for sharing such valuable content!

[@OmPrakash-rs4jm]

I was eagerly waiting for db first approach. thanks alot Patrick.

[@nelsonrivers8546]

Was waiting for this. Thank you.

[@daviddonadze221]

Thank you so much for a nice video. I needed to remind myself DB-first approach. U the best

[@PatrickGod]

You're so welcome!

[@thotchs4116]

i wating for this conten for a long long time. finally ;)

[@sidakgujral2768]

Thanks patrick God a lot of love from INDIA I have leant so many things in dotnet core 6 for my work i love your tutorials easy and fast keep it up

[@jeremaine]

woooo finally!! :)

[@STUPIDYOUTUBE_HIDINGMSGS]

Another good learning material from you! Thank you for sharing your knowledge!

[@PatrickGod]

Glad I could help! Thanks for your feedback, Jack! 😊

[@johngumboc684]

Love your videos. Sometimes your only choice is DB First when your dealing with an existing database. I have had success using partial classes in a separate metadata and partial class cs files with the annotations in a Metadata.cs, that way your data annotations don't get wiped out when you run another scaffold-dbcontext command.

[@ersangokalp200]

Dapper would be great to learn 🙏

[@marna_li]

I used to work for a guy who insisted we would design the database-first. In that way he, the owner/business analyst/database administrator, could modify the structure as he imported customer data - and that is is more efficient. Essentially, he wanted control. So I scaffolded it initially. We were developing in the production database.

[@user-ou2nk8ff1n]

It's just awesome

[@horaciodelgadillo]

Wow.. este fue un excelente video, gracias!

[@Tamer_Ali]

Thanks Patrick for this awesome video. I hope you create a video about using EF Core Power Tool

[@eugenekim1861]

Can you make a video with a practical/real-world example of EF such as using views, and complex relationships with multiple tables, rather than using simple DB schema? That would be much helpful.

[@shivakumarnarayanan1165]

Have u found a tutorial that covers more real world examples?

[@eugenekim1861]

@@shivakumarnarayanan1165 Unfortunately no. Most YT tutorials are not covering real-world examples but just simple/basic ones. If I have one, I WILL subscribe to their channels and give them thumb-ups FOR SURE. Anyway, I wish to find one on GitHub or somewhere.

[@dianatorrontegui7505]

Great content, thanks!!

[@PatrickGod]

Glad you liked it! Thanks for your feedback! 😊

[@aussieraver7182]

Legend!

[@angelachoi3695]

Thank you!!

[@PatrickGod]

You're welcome!

[@MehmetAliEGE]

Thanks God. In both senses. :)

[@PatrickGod]

You're very welcome! 😄

[@pw.70]

Just as a note, the classes used for the automated build of these classes are all defined as public partial. That means that any extended properties and functionality can be attached to the model classes. I tend to do this in a folder called 'Extenders'.

[@elliottwavechina721]

more topics about code first, but less for database first which is more commonly used , your video is very helpful

[@RunningDigger]

thank you very much!

[@SuperOazy]

Perfect; thanks a lot.

[@kdu97]

Thank you!!!

[@nittinaggarwal1068]

Very nice video. I just want to know how we can call the stored procedure as well using the same code above.

[@The_Ethical_Slacker]

Nicely informative, thank you. I think the big thing I take from this... you touch on this a little throughout but especially at the end... is the fragility of the link between code and database. For me, this makes me ask... do I *want* the code to know about the database? Because someone's going to change the database without telling anyone, and it's going to break the application. Okay, there needs to be *some* knowledge between the two, just for the solution to work, but we should probably aim for that knowledge to be minimal.

[@troymitchel4790]

Thanks for creating this Patrick. Really helpful. Don't most high revenue companies already have existing databases? Wouldn't DB first approach be the most common way anyways? Code first is usually for teaching or for creating brand new databases. I seriously doubt that most companies are allowing people to create a new database every time they need software written.

[@NadunUdana]

absolutely

[@christoffermartell193]

Great video.

[@thedude6810]

That was helpful

[@fadyosama4642]

thanks helpful vid

[@PatrickGod]

Glad you liked it!

[@sarwalgaurav]

Thanks for this video, its simple and well explained, can you please share how can we take this scaffold database context and migrate to code first for any further changes to database, like adding new tables or changes to existing tables etc.

[@inanogluahmet2]

What to do if table columns in database are changed later?

[@AbrahamWilson]

Hey Patrick, thanks for making another amazing video, I do have a video request, can you make a series on Dapper

[@rogeriolima8152]

In real world, inside companies, I will almost NEVER be allowed to run a program that make changes in DB structure (this is unthinkable), as code first does. But database first... well ok maybe we can use.

[@bobchu5314]

Please make a tutorial do EF6 Database First with DB is SQLite

[@khubaibquadri7977]

What does virtual keyword does with the attributes?

[@MitroiBogdan-ef3ei]

10:30 Why is class User defined as virtual : public virtual User User {get; set;} ???

[@mandarkarnik]

What about Editor like earlier .net framework 4.7.2 EF 6. editor? How to use store procedure based approach with .net COre EF? If my table consists for billions of records, I do not want to use table based approach? Any simple editor available?

[@nelsonrivers8546]

With Dapper, one issue is that is does not provide "concurrency checking". Can you address how to handle "concurrency issues" that could arise when using Dapper to do UPDATE, INSERT, DELETE operations ?

[@HeinzBigler]

Interesting video. What about Stored Procedures, what would be the best practice here? Migrate them to C# methods?

[@PatrickGod]

Hey Heinz, it seems this might be a good option. EF Core seems to be very limited regarding stored procedures. For instance you can only return Entities and you can't use Joins in your stored procedure according to the documentation. Hope this helps! Take care, Patrick

[@joecasa19]

I personally would create custom entities to receive the output of stored procs that return data and then use the open source package Dapper to call execute the procedures. You can still use your DbContext connection to execute the procedures. For stored procs that perform operation but don't return anything, Execute with Dapper again using your DbContext connection. You don't get the benefits of caching that EF gives you but compared to the huge boost in performance, just remember and be aware that you should recycle the DbContext before doing an EF query where the execution of your stored proc may have altered the data that was previously retrieved by EF. If everything your app needs to do with the DB is already written as views and stored procs, consider had rolling your entities and use Dapper instead of bringing EF into the mix. Your users will appreciate the performance difference.

[@mdarif-rt9mg]

Hi Patrick, would be interested to if you can show us demo on building api using Db first ef core as i would like to expose the data from oracle database , basically to a thrid party using basic authentication.

[@RockoShaw]

what about the username and password>? how does that is input into the PM console to be able to retrieve the context?

[@sagarmajumdar92]

Hi Patrick. Will you be making a tutorial on dotnet Web API Versioning and configuring Swagger for versioning ?

[@lv9479]

Hello, as usually it is very usefull. I got the same problem of object cycle with our oracle database but the swagger is completly stucked in our case. I set the JsonIgnore and it's OK.

[@vtminhlien8840]

Now let work with session to build simple admin web, tks you very much

[@delightful730]

Need Get Data from Multiple Tables with join Query, DB First Approach, MVC, Not Repository Parrten

[@borissisi3673]

so sNice tutorialt like that

[@prabhagarann840]

Using database first approach can we create a new database which has the schema of existing database? if that's possible can u make one vedio?

[@rajeshkubhardwaj]

Scaffold-DbContext command with sybase database for NET 6 Database First Approach ?

[@normanaranez323]

do you have any idea how to create multiple database base on tenant or subdomain? i mean if we select tenant/subdomain use database intended for that. thanks

[@memoriesofold9591]

what if I add another table in the database, how can I update the scaffold to insert the new table?

[@Dartarok999]

patrick god, could you help me, making a video explaining how to save multiple files with inputfile but save them in a local folder and show that local path in the database, it would be very helpful since I've been trying for a long time...with blazor webassembly

[@sahitkarale]

How do I scaffold using IdentityDbContext instead of DbContext because I want to use some of IdentityDbContext features

[@egulsever]

After scaffolding I want to be able to add a new column to Product table following code-first and add-migration. Is that possible?

[@mohammadmaninang3766]

I have a existing database with tables but those tables will not be part of the project. Should I use code first or database first but the requirement is to use that database. I was wondering if I use code first will it delete the other tables??

[@schwifty0554]

Hi thanks for the vid, can you have 2 db connections ?

[@marshallnyamadzawo8553]

How do you create a view with code first?

[@angelcasanchez7229]

patrick a video about code first migration minute 19:47 please thank you very much

[@jdelgado1025]

Is an updated version of the Full Stack class coming out soon using .NET 6 and EF6?

[@PatrickGod]

It's here: kzbin.info/www/bejne/gWOWpn2ags54ps0 Enjoy! 😄

[@user-yy7nf4sh8f]

wheres the file for the database table

[@princesarno2652]

Mine looks notNice tutorialng like the way you guys started it would be amazing if soone told how to get the multiple tracks

[@MohammadKomaei]

This is not a good reason to use code first , we can set a setting just one place in program.cs file: builder.Services.AddControllersWithViews() .AddControllers(options => options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.IgnoreCycles);

[@lahirurandika6141]

Where can I get the DB sql file?

[@ahmetkeskin2462]

11.20

[@jndsdk]

🎉🎉🎉🎉❤❤❤

[@printagencia565]

hahsdhahah good

[@Denvercoder]

This guy really has a “God” complex. 😂😂😂