diff --git a/SpigotCore_Main/src/de/steamwar/sql/TeamTeilnahme.java b/SpigotCore_Main/src/de/steamwar/sql/TeamTeilnahme.java
new file mode 100644
index 0000000..cd350d0
--- /dev/null
+++ b/SpigotCore_Main/src/de/steamwar/sql/TeamTeilnahme.java
@@ -0,0 +1,54 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020 SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see .
+ */
+
+package de.steamwar.sql;
+
+import java.sql.ResultSet;
+import java.util.HashSet;
+import java.util.Set;
+
+public class TeamTeilnahme {
+ private TeamTeilnahme(){}
+
+ private static final SQL.Statement byEventTeam = new SQL.Statement("SELECT * FROM TeamTeilnahme WHERE TeamID = ? AND EventID = ?");
+ private static final SQL.Statement byEvent = new SQL.Statement("SELECT * FROM TeamTeilnahme WHERE EventID = ?");
+ private static final SQL.Statement byTeam = new SQL.Statement("SELECT * FROM TeamTeilnahme WHERE TeamID = ?");
+
+ public static boolean nimmtTeil(int teamID, int eventID){
+ return byEventTeam.select(ResultSet::next, teamID, eventID);
+ }
+
+ public static Set getTeams(int eventID){
+ return byEvent.select(rs -> {
+ Set teams = new HashSet<>();
+ while(rs.next())
+ teams.add(Team.get(rs.getInt("TeamID")));
+ return teams;
+ }, eventID);
+ }
+
+ public static Set getEvents(int teamID){
+ return byTeam.select(rs -> {
+ Set events = new HashSet<>();
+ while(rs.next())
+ events.add(Event.get(rs.getInt("EventID")));
+ return events;
+ }, teamID);
+ }
+}