diff --git a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/AzureDB.java b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/AzureDB.java
index 7fca7c404662488c81f3c3e85c21e077d82d94dd..d196f9401fea96ea0bbf624c8386acbe5864350a 100644
--- a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/AzureDB.java
+++ b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/AzureDB.java
@@ -10,7 +10,7 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.util.ArrayList;
 
-public class AzureDB implements IDataBase{
+public class AzureDB implements ISQLDataBase {
 
     /*this class is only here for showcasing the interchangeability of the DBMS*/
 
diff --git a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/IDataBase.java b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/ISQLDataBase.java
similarity index 90%
rename from src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/IDataBase.java
rename to src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/ISQLDataBase.java
index cab1ba1463de1d506f2c5ea4b98affcb2f0c53d8..51f83a1757339dae33320575dcd0226f2c2f37a2 100644
--- a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/IDataBase.java
+++ b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/ISQLDataBase.java
@@ -5,7 +5,7 @@ import de.hdm_stuttgart.battlearena.Exceptions.DatabaseError;
 import java.sql.Connection;
 import java.util.ArrayList;
 
-public interface IDataBase {
+public interface ISQLDataBase {
 
     Connection connect() throws DatabaseError;
 
diff --git a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/OracleDB.java b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/OracleDB.java
index b3f2eb453d58223e1b102e928f6a9bbde74679a3..5eac5ff704698297e9128f0b8c9b031d54148384 100644
--- a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/OracleDB.java
+++ b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/OracleDB.java
@@ -6,12 +6,10 @@ import org.apache.logging.log4j.Logger;
 
 import java.sql.*;
 import java.util.ArrayList;
-import java.util.Properties;
 
 import oracle.jdbc.pool.OracleDataSource;
-import oracle.jdbc.OracleConnection;
 
-public class OracleDB implements IDataBase {
+public class OracleDB implements ISQLDataBase {
 
     private static final Logger log = LogManager.getLogger(OracleDB.class);
     @Override
@@ -102,7 +100,7 @@ public class OracleDB implements IDataBase {
         }
     }
 
-    public void uploadCommunityMapByID(MapData map) throws DatabaseError{
+    public void uploadCommunityMap(MapData map) throws DatabaseError{
         try(Connection connection = connect()) {
             String sql = "INSERT INTO battlearenadata.communitymaps (map_id, map_name, map_width, map_height, map_data) VALUES (?, ?, ?, ?, ?)";
             PreparedStatement stmt = connection.prepareStatement(sql);
diff --git a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/Persistence.java b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/Persistence.java
index 493477802705a20c16635e08a6e7d1072c4d2c33..c5c12aada73387a80d97985a7c7342147691e9e0 100644
--- a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/Persistence.java
+++ b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/Persistence.java
@@ -72,7 +72,7 @@ public class Persistence {
 
     public void uploadCommunityMap(MapData map){
         try {
-            db.uploadCommunityMapByID(map);
+            db.uploadCommunityMap(map);
             communityMaps.add(map);         //hier noch prüfen, ob die Map lokal bereits existiert (falls eine Verbindung zur DB scheitern sollte, kann man sie dennoch lokal speichern
             gsonHandler.saveMaps(communityMaps, MapType.COMMUNITYMAP);
             log.info("Community-Maps successfully published");
diff --git a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/PlayerAccount.java b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/PlayerAccount.java
index dbc3778009a54ee13c3aceaa9eb33475ae5c46c7..8eac2aa4ce1a6f0ee723e88a342492674666163d 100644
--- a/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/PlayerAccount.java
+++ b/src/main/java/de/hdm_stuttgart/battlearena/Persistance/Classes/PlayerAccount.java
@@ -3,7 +3,7 @@ package de.hdm_stuttgart.battlearena.Persistance.Classes;
 public class PlayerAccount {
 
     private String playerName;
-    private String accountPassword;
+    private String accountPassword;     //only used for Online-Account; "" for local account
     private AccountType accountType;