versucht das speichern neuer einträge einzufügen, geht nix

Project.Persistence/SQLite.cs

@@ -27,7 +27,7 @@ public partial class SQLite
                 loginemail STRING NOT NULL
             );
         ";
-        command.ExecuteNonQuery();
+        //command.ExecuteNonQuery();
         command.CommandText =
             @"
             CREATE TABLE IF NOT EXISTS SAVED_LOGINS (
@@ -35,6 +35,9 @@ public partial class SQLite
                 pass STRING NOT NULL,
                 mail_username STRING NOT NULL,
                 note STRING
+                owner STRING NOT NULL,
+                FOREIGN KEY(owner) REFERENCES LOGINS(loginname)
+
             );
         ";
         command.ExecuteNonQuery();

Project.Persistence/SQLite3.cs

@@ -0,0 +1,27 @@
+using Microsoft.Data.Sqlite;
+using Project.Model;
+namespace Project.Persistence;
+
+public partial class SQLite
+{
+    public static void SaveLogin(string name, string pass, string mailUsername, string? note, string ownerUsername)
+    {
+        using var connection = new SqliteConnection($"Data Source={_dbPath}");
+        connection.Open();
+        using (var command = connection.CreateCommand())
+        {
+            command.Parameters.AddWithValue("@name", name);
+            command.Parameters.AddWithValue("@pass", pass);
+            command.Parameters.AddWithValue("@mail_username", mailUsername);
+            command.Parameters.AddWithValue("@note", note ?? "");
+            command.Parameters.AddWithValue("@owner", ownerUsername);
+            
+            command.CommandText =
+                @"
+        INSERT INTO SAVED_LOGINS (name, pass, mail_username, note, owner)
+        VALUES (@name, @pass, @mail_username, @note, @owner);";
+            command.ExecuteNonQuery();
+        }
+    }
+
+}