I am using EF Core in .Net 6 App,
The Project is almost Complete,
But Now I want to code for Backup and Restore?
Here is code for EF, But it is not work for EF Core.
code.
Backing up a database is not within the scope of an ORM. The code you linked to does not rely on Entity Framework it uses SQL Server Management Object (SMO). SMO requires .NET Framework 4.0 or .NET Core 2.0 to run. You can install the package from Nuget.
Related
I am working on a .NET Core application. Can I connect to an Azure SQL database using an access token without adding Entity Framework to my application?
There are a lot of articles online which show the connection using Entity Framework (example : https://learn.microsoft.com/en-us/azure/app-service/app-service-web-tutorial-connect-msi)
Yes, you can the use System.Data.SqlClient NuGet package, specifically SqlConnection.AccessToken.
I'm migrating a project in web forms to .net core 2.0 and I have to use SQL Anywhere (Sybase) as a database, can I use SQL anywhere with entity framework in the .net core?
According to the official documentation on EF Core, it does not look as if Sybase is supported.
You can see the list of Database Providers available here: https://learn.microsoft.com/en-us/ef/core/providers/
In one of my project i was using entity framework 5.0 with MySql 5.6 With Mysql Connector Version 6.7.4.0.
Previously it was working fine but due to some reason i have to update the entity framework version from 5.0 to 6.0 and for which i have to update the mysql connector version from 6.7.4.0 to 6.8.3.0 which is the recommended mysql connector to use with entity framework 6.x.
Due to which now i am not able to update my .edmx file. while updating it is giving error saying your project reference the latest version of entity framework; however an entity framework database provider compatible with this version could not be found for your data connection.
Following is the screen shot of the error.
EF 6 & EF 5 seem to be not compatible. Try this (point 3). Or you could remove your *.edmx file from your project and generate a new one from the database instead.
I've had problems with it as wel, I had to use a provider tag in the enitityframework tag in my app.conf
see the link below for more information and follow those steps:
http://forums.mysql.com/read.php?174,601264,601264
look at this one to get a better sence of the code.
http://dev.mysql.com/doc/connector-net/en/connector-net-entityframework60.html
With Microsoft dropping SQL Server Compact from Visual Studio 2013, I've decided to move my application to SQLite. However, when I try to create the O/RM from an existing database, I receive the following error message:
Your project references the latest version of the Entity Framework; however, an Entity Framework database provider compatible with this version could not be found for your data connection
I am using the following technology stack:
windows 7 64 bit
Visual Studio 2013 Professional
NuGet Package for Entity Framework 6.1
NuGet Packages SQLite 1.0.92.0, SQLite 1.0.92.0 Core, SQLite 1.0.92.0 EF6, SQLite 1.0.92.0 LINQ
Installed sqlite-netFx451-setup-bundle-x86-2013-1.0.92.0 which allows the VS2013 designer to work with SQLite
I'm using a new C# console application. I've tried rebuilding the application, rebooting, and re-installing everything short of the OS.
Both the "Platform Target" on the Build property page and "Platform" on the configuration manager are set to x86.
The exception message is quite clear. You have not provided a database provider that is compatible with Entity Framework.
Your Program -> Entity Framework -> Database Provider -> Database Services
Doing a quick Google for Entity Framework Sqllite provider yielded:
System.Data.SQLite - Not sure if it's been updated for EF 6.1
and
dotConnect for SqLite - Might be compatible.
I am using Sqlite ADO.NET provider 2.0 in my c# application .net framework 4.0.
Question1: Does this .dll come with a back up Database functionality?. If the suer wants to backup, looks like I have to get the source code and write my own backup feature.
Or is it already provided and I just need to use it?
Question2 :
I tried downloading a recent version of Sqlite ADO.NET provider(line 3.5/4.0)
from this website
http://www.sqlite.org/download.html/
sqlite-dll-win32-x64-3071300.zip
After attaching the dll as reference, it still says
Version v2.0.50727.
Description: ADO.NET 2.0 Data Provider for SQLite. Is this correct stable version or is there a recent one to be used.
Thank u
For Question 1: The ADO.NET provider isn't meant to have a backup capability. That's something the RDBMS software should have. ADO.NET is just a tool used to simplify communicating with the RDBMS.
- However, SQLLite backups are documented at http://www.sqllite.org/backup.html
For #2 I don't see a question - just a statement that you got a warning from Visual Studio. BUT based on what I'm seeing, you will get an error. You're trying to use an SqlLite provider for .NET 3.5 or above, and your .NET project is set to 2.0. Either upgrade your app to 3.5 or above, or look for an older .dll to download and use.
As a general rule of thumb, in a .NET project, you can use .dll files specified for an older version of the Framework, but not .dlls specified for newer versions.