Add example basic query functions.

EntityFrameworkCore.Console/Program.cs

@@ -14,19 +14,50 @@ 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();
 
-// Selection based on finding the Primary Key.
+await GetAllTeamsQuerySyntax("Neo");
-var teamBasedOnId = await context.Teams.FindAsync(5);
+
-if (teamBasedOnId != null)
+async Task GetAllTeamsQuerySyntax(string searchTerm)
 {
-  Console.WriteLine(teamBasedOnId.Name);
+  var teams = await (
+    from team in context.Teams
+    where EF.Functions.Like(team.Name, $"%{searchTerm}%")
+    select team)
+    .ToListAsync();
+  foreach (var team in teams)
+  {
+    Console.WriteLine(team.Name);
+  }
 }
 
-void PrintTeams()
+async Task PrintTeams()
 {
-  var teams = context.Teams.ToList();
+  var teams = await context.Teams.ToListAsync();
 
   foreach (var team in teams)
   {
     Console.WriteLine(team.Name);
   }
 }
+
+async Task PrintFilteredTeams()
+{
+  Console.WriteLine("Enter search term: ");
+  var searchTerm = Console.ReadLine();
+
+  // var filteredTeams = await context.Teams.Where(t => t.Name.Contains(searchTerm)).ToListAsync();
+  var filteredTeams = await context.Teams.Where(t => EF.Functions.Like(t.Name, $"%{searchTerm}%")).ToListAsync();
+  foreach (var team in filteredTeams)
+  {
+    Console.WriteLine(team.Name);
+  }
+}
+
+async Task PrintTeamById(int id)
+{
+  // Selection based on finding the Primary Key.
+  var teamBasedOnId = await context.Teams.FindAsync(id);
+  if (teamBasedOnId != null)
+  {
+    Console.WriteLine(teamBasedOnId.Name);
+  }
+}