How do you show underlying SQL query in EF Core?

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Update for .NET 6 and later: EF logging is enabled by default in development.

Just add "Microsoft.EntityFrameworkCore.Database.Command": "Information" to appsettings.Development.json so it’s only logged in dev mode. You typically don’t want to log every query in a production app.

{
  "ConnectionStrings": {
    "DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=MyDB-2;Trusted_Connection=True;MultipleActiveResultSets=true"
  },
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
     ,"Microsoft.EntityFrameworkCore.Database.Command": "Information"
    }
  },
  "AllowedHosts": "*"
}

The SQL output shows in the command window or VS output window.

enter image description here

See SQL Logging of Entity Framework Core in the official docs. In older versions, it was a bug that it didn’t log by default, see this GitHub issue.

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