update model from database entity framework core code example

Example 1: update models with ef core

Scaffold-DbContext "Server=myserver\mydb;Database=mydb;Trusted_Connection=True;" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models -t <table> -f

Example 2: how to update modal class using dbfirst in asp.net core

Title:  Update DbContext
Command: dotnet.exe
Arguments: ef dbcontext scaffold "your-connection-string" Microsoft.EntityFrameworkCore.SqlServer --output-dir=Models --force
Initial directory: $(ProjectDir)

  Then optionally tick "Use Output window", hit Apply and OK.

  When you go to Tools again, this new menu should be there and ready for reuse, 
  in just a click of a button!