Logging/Debugging (EF CORE)
===========================
Once you configure logging on a DbContext instance it will be enabled on all instances of that DbContext type
    using var context = new MyContext();
	context.ConfigureLogging(s => System.Diagnostics.Debug.WriteLine(s)); // write to Visual Studio "Output" tab
    //context.ConfigureLogging(s => Console.WriteLine(s));
see comments at top of file:
    Dinah.EntityFrameworkCore\DbContextLoggingExtensions.cs

LocalDb
=======
only works if LocalDb is separately installed on host box
SSMS db connection: (LocalDb)\MSSQLLocalDB
eg: Server=(localdb)\mssqllocaldb;Database=DataLayer.LibationContext;Integrated Security=true;
LocalDb database files live at:
  C:\Users\[user]\DataLayer.LibationContext.mdf
  C:\Users\[user]\DataLayer.LibationContext_log.ldf

Migrations
==========

Visual Studio, EF Core
----------------------
View > Other Windows > Package Manager Console
Default project: DataLayer
Startup project: DataLayer
since we have mult contexts, must use -context:
        Add-Migration MyComment -context LibationContext
		Update-Database -context LibationContext
Startup project: reset to prev. eg: LibationLauncher


ERROR
=====
Add-Migration : The term 'Add-Migration' is not recognized as the name of a cmdlet, function, script file, or operable program

SOLUTION
--------
add nuget pkg: Microsoft.EntityFrameworkCore.Tools


SQLite
======
SQLite does not support all migrations (schema changes) due to limitations in SQLite
delete db before running Update-Database?