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https://github.com/dkolzenov/efcore-samples
Entity Framework Core providers sample
https://github.com/dkolzenov/efcore-samples
asp-net-core efcore migrations ms-access ms-sql-server mysql oracle postgresql sqlite
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Entity Framework Core providers sample
- Host: GitHub
- URL: https://github.com/dkolzenov/efcore-samples
- Owner: dkolzenov
- License: mit
- Created: 2022-10-13T15:15:36.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2022-11-19T19:45:58.000Z (almost 2 years ago)
- Last Synced: 2024-09-28T14:41:23.329Z (about 2 months ago)
- Topics: asp-net-core, efcore, migrations, ms-access, ms-sql-server, mysql, oracle, postgresql, sqlite
- Homepage:
- Size: 110 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
# Entity Framework Core providers sample
### ★ Put a star if the repository was useful ★
##
### The repository was created as a demonstration of working with various database providers using ORM Entity Framework Core
## Providers
* [SQLite](https://www.sqlite.org)
* [MS SQL Server](https://www.microsoft.com/en-us/sql-server)
* [MySQL](https://www.mysql.com)
* [PostgreSQL](https://www.postgresql.org)
* [Oracle](https://www.oracle.com/database)
* [MS Access](https://www.microsoft.com/en-us/microsoft-365/access)
[Learn more about supported database providers for Entity Framework Core](https://learn.microsoft.com/en-us/ef/core/providers)
## Configuring migrations
1. After opening terminal (command line), install dotnet ef tool (if it is not already installed) by entering the following command:
`dotnet tool install --global dotnet-ef`
2. Make sure that correct connection string is entered in the [appsettings.json](https://github.com/dkolzenov/efcore-samples/blob/main/samples/EFCoreSample.Api/appsettings.json) file ([learn more about connection strings](https://learn.microsoft.com/en-us/ef/core/miscellaneous/connection-strings))
3. From terminal (command line) go to [samples](https://github.com/dkolzenov/efcore-samples/tree/main/samples) directory
4. Command to add migration:
```bash
dotnet ef migrations add `Name` --project `Project` --startup-project `StartupProject` --context `Context`
```
5. Command to update a database:
```bash
dotnet ef database update --project `Project` --startup-project `StartupProject` --context `Context`
```
6. Command to remove migration:
```bash
dotnet ef migrations remove --project `Project` --startup-project `StartupProject` --context `Context`
```
[Learn more about dotnet ef commands and parameters](https://learn.microsoft.com/en-us/ef/core/cli/dotnet)
### Reference for migration commands:
`Name` - The name of the migration.
__For example__: `Initial`
`Project` - Relative path to the project folder of the target project. Default value is the current folder.
__For example__: `EFCoreSample.Persistence.Sqlite`
`StartupProject` - Relative path to the project folder of the startup project. Default value is the current folder.
__For example__: `EFCoreSample.Api`
`Context` - The name of the DbContext class to generate. If the DbContext is only one, then the attribute __is not required__.
__For example__: `ApplicationDbContext`
## Connection strings
All connection strings must be located in the [appsettings.json](https://github.com/dkolzenov/efcore-samples/blob/main/samples/EFCoreSample.Api/appsettings.json) file ([learn more about connection strings](https://learn.microsoft.com/en-us/ef/core/miscellaneous/connection-strings))
Connection string examples:
* MySQL
```bash
server=localhost;database=EFCoreSample;user=user;password=password
```
[more MySQL examples here](https://www.connectionstrings.com/mysql)
* Oracle
```bash
User Id=user;Password=password;Data Source=localhost:5432/EFCoreSample
```
[more Oracle examples here](https://www.connectionstrings.com/oracle)
* PostgreSQL
```bash
Host=localhost;Port=5432;Database=EFCoreSample;Username=postgres;Password=password
```
[more PostgreSQL examples here](https://www.connectionstrings.com/postgresql)
* SQLite
```bash
Data Source=EFCoreSample.db
```
[more SQLite examples here](https://www.connectionstrings.com/sqlite)
* MS SQL Server
```bash
Server=(localdb)\\\\mssqllocaldb;Database=EFCoreSample;Trusted_Connection=True;
```
[more MS SQL Server examples here](https://www.connectionstrings.com/sql-server)
* MS Access
```bash
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=EFCoreSample.accdb;Persist Security Info=False
```
[more MS Access examples here](https://www.connectionstrings.com/access)
## Pay attention
In this example, the [EFCoreSample.Api](https://github.com/dkolzenov/efcore-samples/tree/main/samples/EFCoreSample.Api) project is connected to all database providers at once, which is basically impossible in a real project:
`one project cannot contain multiple providers, the code given is just an EXAMPLE of how to initialize a context using different providers`