Revisit: The God Provider Is Not Enough

[Thorium]

Now, 10 years later, this is a second take on @simonhdickson old PR #85

High level changes:

• Add a separate SQLProvider.Common project (FSharp.Data.SqlProvider.Common.dll) to contain all the shared code.
• Keep old SQLProvider.Runtime and SQLProvider.DesignTime if people want to still use those, there is no reason not to.
• Where X is the database: Added separate specific SQLProvider.X.DesignTime (FSharp.Data.SqlProvider.X.dll) and SQLProvider.X.Runtime (FSharp.Data.SqlProvider.X.DesignTime.dll) projects These will be packed as separate NuGet packages as SQLProvider.X

Usage:

• SqlDataProvider is the same type as before, (with same constructors) but these separate packages have it under different namespaces, so besides of open FSharp.Data.Sql you have to open another namespace as well, like e.g. open FSharp.Data.Sql.MsSql

Nuget Packages

• SQLProvider - Generic provider supports all databases, but needs some manual setup of reference assemblies
• SQLProvider.MsSql - Microsoft SQL Server (and SSDT) only, using Microsoft.Data.SqlClient
• SQLProvider.PostgreSql - PostgreSQL only
• SQLProvider.MySql - MySQL and MariaDB only
• SQLProvider.FireBird - FireBird only
• SQLProvider.SQLite - SQLite only
• SQLProvider.Oracle - Oracle only
• SQLProvider.Odbc - ODBC connections only
• SQLProvider.DuckDb - DuckDB only