Add example query with tracking disabled.

This can also be done globally, see context file.

EntityFrameworkCore.Console/Program.cs

@@ -14,6 +14,20 @@ var teamFour = await context.Teams.SingleOrDefaultAsync(t => t.TeamId == 3);
 // Rather than raise: "System.InvalidOperationException: Sequence contains no elements."
 var coach = await context.Coaches.FirstOrDefaultAsync();
 
+async Task TrackedQuery()
+{
+  // EF Core tracks objects that are returned by queries.
+  // This is less useful in disconnected applictations like APIs and Web applications.
+  var teams = await context.Teams
+    .AsNoTracking()
+    .ToListAsync();
+
+  foreach (var team in teams)
+  {
+    Console.WriteLine(team.Name);
+  }
+}
+
 async Task SkipAndTakeTeams()
 {
   var recordCount = 3;

EntityFrameworkCore.Data/DeadBallZoneLeagueDbContext.cs

@@ -21,6 +21,7 @@ public class DeadBallZoneLeagueDbContext : DbContext
   protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
   {
     optionsBuilder.UseSqlite($"Data source={DbPath}")
+      // .UseQueryTrackingBehavior(QueryTrackingBehavior.NoTracking) // Do not use tracking, set globally on all queries.
       .LogTo(Console.WriteLine, LogLevel.Information)
       .EnableSensitiveDataLogging() // Do not allow this in Production.
       .EnableDetailedErrors(); // Do not allow this in Production.