Entity Framework 5.0 - Code First Migrations - How to update a database schema Part 2 of 2

In this video I quickly go over using EF migrations to add and remove columns from the existing database that was initially created with code first.

Thank you for watching!! :D
Fabio Scopel

[MagianCreative]

Getting the updates to work had been killing me. Thank you very much!!

[dharmitvyas]

sir, so basically when we make any changes to our models we need to run "Add -Migration anyname" command and then simply provide "Update-database" command, right ????

[manojpokala]

Comments have had all my questions and their answers :). Excellent work Fabio. Very useful set of videos. Thank you!!

[MrVuthehiep]

It's helpful for me. Hope ya guy make more videos like this. Thanks for your tutorials

[ebergerch]

Thanks, very clear intros (all EF). Thanks for spending time doing this!

[yazilimciningunlugucom]

Thank you for the EF tutorial, all are clear and useful for me.

[ukaffairs]

Thank you for your video it helped me with EF on Visual studio

[shabnamnikraftar]

In Visual Studio, using migrations, when I run update-database, it says OK, the model is created in the database.

But when I open the database, there is no model, while when I run update-database in Visual Studio again, the error is that such an object already exists. Made but there is no model of this type in database where the problem can be? It is the same for all the models that I migrate

[compman]

First question is How we can update db by C# code and how can we make it smart enough to do it automatically whenever application runs.??

[who-phpnerd]

Yeh man ! You have done the exact thing, which I'm looking for :)
Thank you very much ! ! !

[reinux]

i can't believe i've been struggling with model first and database first all this time when code first is so much easier to use.

[saikiran]

Thanks for the great Tutorial, how can i add new table to the existing Database?

[nedadra]

thank you. i have a question . is it possible to migrate database to lower version some how like this?

[federicolezcano]

It's really helpfull thanks!!
Can i ask you one question, what's the oposite command to update the context from the database

Thanks a lot!!

[mondlism]

Great work Mr Scopel, but the sound is not clear sometimes.

[Priosshrestha]

Is it good approach to use entity framework? or will I have problem migrating my project. I once used datagrid view from tool box in my college minor project and it was a disaster when I moved it to my assigned PC in college.

[qweasdzxc]

Hi! Your videos are excellent references! Thank you very much!
When the database is updated, can i delete autogenerated update clases?

[webvideochat]

What is the order when I use CFM create one more table ?
I've tried Create Model -> Update Context file -> add Mirgration (cannot)

[CalibrationExtreme]

I'd like to use MODEL FIRST. I'd like to make changes in the model (the GUI) and have an automated (or at least a very simple "click") method of updating the database. This exist or in the works I wonder?

[yogeshvaidya]

hi
here i am trying to add a column to product table, as a first changes in database
i added a column ImageURL_add string
and in pm>
i run command add-migration addImageUrl_add

but its continuously showing error
PM> add-migration addImageURL_add
Exception calling "LoadFrom" with "1" argument(s): "Could not load file or assembly
file specified."
At char:5
+ $utilityAssembly = ...
+
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FileNotFoundException

You cannot call a method on a null-valued expression.
At char:5
+ $dispatcher =
+
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling "CreateInstanceFrom" with "8" argument(s): "Could not load file or assembly
specified."
At char:5
+ $domain.CreateInstanceFrom(
+
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FileNotFoundException


please help me