diff --git a/src/main/java/vip/fubuki/playersync/PlayerSync.java b/src/main/java/vip/fubuki/playersync/PlayerSync.java
index 669fa7a..6d17f31 100644
--- a/src/main/java/vip/fubuki/playersync/PlayerSync.java
+++ b/src/main/java/vip/fubuki/playersync/PlayerSync.java
@@ -41,11 +41,24 @@ public class PlayerSync
 
     @SubscribeEvent
     public void onServerStarting(ServerStartingEvent event) throws SQLException {
-        JDBCsetUp.executeUpdate("CREATE DATABASE IF NOT EXISTS "+JdbcConfig.DATABASE_NAME.get(),1);
+        JDBCsetUp.executeUpdate("CREATE DATABASE IF NOT EXISTS `playersync`",1);
 
-        JDBCsetUp.executeUpdate("CREATE TABLE IF NOT EXISTS player_data (uuid CHAR(36) NOT NULL," +
-                "inventory MEDIUMBLOB,armor BLOB,advancements BLOB,enderchest MEDIUMBLOB,effects BLOB," +
-                "xp int,food_level int,score int,health int,online boolean, last_server int, PRIMARY KEY (uuid))");
+        JDBCsetUp.executeUpdate("""
+                CREATE TABLE IF NOT EXISTS `player_data` (
+                  `uuid` char(36) NOT NULL,
+                  `inventory` mediumblob,
+                  `armor` blob,
+                  `advancements` blob,
+                  `enderchest` mediumblob,
+                  `effects` blob,
+                  `xp` int DEFAULT NULL,
+                  `food_level` int DEFAULT NULL,
+                  `score` int DEFAULT NULL,
+                  `health` int DEFAULT NULL,
+                  `online` tinyint(1) DEFAULT NULL,
+                  `last_server` int DEFAULT NULL,
+                  PRIMARY KEY (`uuid`)
+                );""");
         JDBCsetUp.executeUpdate("CREATE TABLE IF NOT EXISTS chat (player CHAR(36) NOT NULL,message TEXT," +
                 "timestamp BIGINT)");
         JDBCsetUp.executeUpdate("""
diff --git a/src/main/java/vip/fubuki/playersync/config/JdbcConfig.java b/src/main/java/vip/fubuki/playersync/config/JdbcConfig.java
index 5ea63df..3408b14 100644
--- a/src/main/java/vip/fubuki/playersync/config/JdbcConfig.java
+++ b/src/main/java/vip/fubuki/playersync/config/JdbcConfig.java
@@ -11,7 +11,6 @@ import java.util.Random;
 public class JdbcConfig {
     public static ForgeConfigSpec COMMON_CONFIG;
     public static ForgeConfigSpec.ConfigValue<String> HOST;
-    public static ForgeConfigSpec.ConfigValue<String> DATABASE_NAME;
     public static ForgeConfigSpec.IntValue PORT;
     public static ForgeConfigSpec.ConfigValue<String> USERNAME;
     public static ForgeConfigSpec.ConfigValue<String> PASSWORD;
@@ -26,7 +25,6 @@ public class JdbcConfig {
         ForgeConfigSpec.Builder COMMON_BUILDER = new ForgeConfigSpec.Builder();
         COMMON_BUILDER.comment("General settings").push("general");
         HOST=COMMON_BUILDER.comment("The host of the database").define("host", "localhost");
-        DATABASE_NAME= COMMON_BUILDER.comment("Database name").define("database_name", "playersync");
         PORT = COMMON_BUILDER.comment("database port").defineInRange("db_port", 3306, 0, 65535);
         USE_SSL = COMMON_BUILDER.comment("whether use SSL").define("use_ssl", false);
         USERNAME = COMMON_BUILDER.comment("username").define("user_name", "root");
diff --git a/src/main/java/vip/fubuki/playersync/util/JDBCsetUp.java b/src/main/java/vip/fubuki/playersync/util/JDBCsetUp.java
index 4626e7b..b6b6300 100644
--- a/src/main/java/vip/fubuki/playersync/util/JDBCsetUp.java
+++ b/src/main/java/vip/fubuki/playersync/util/JDBCsetUp.java
@@ -14,25 +14,28 @@ public class JDBCsetUp {
 
     public static QueryResult executeQuery(String sql) throws SQLException{
        Connection connection = getConnection();
+        PreparedStatement useStatement = connection.prepareStatement("USE `playersync`");
+        useStatement.executeUpdate();
 
-       PreparedStatement useStatement = connection.prepareStatement("USE " + JdbcConfig.DATABASE_NAME.get());
-       useStatement.executeUpdate();
-
-       PreparedStatement queryStatement = connection.prepareStatement(sql);
-       ResultSet resultSet =queryStatement.executeQuery();
+        PreparedStatement queryStatement = connection.prepareStatement(sql);
+        ResultSet resultSet = queryStatement.executeQuery();
        return new QueryResult(connection,resultSet);
     }
 
     public static int executeUpdate(String sql) throws SQLException{
-        return executeUpdate(sql,0);
-    }
-
-    public static int executeUpdate(String sql,int init) throws SQLException{
         try (Connection connection = getConnection()) {
 
-            if(init==0){
-                sql="USE " + JdbcConfig.DATABASE_NAME.get() +";" + sql;
+            PreparedStatement useStatement = connection.prepareStatement("USE `playersync`");
+            useStatement.executeUpdate();
+
+            try (PreparedStatement updateStatement = connection.prepareStatement(sql)) {
+                return updateStatement.executeUpdate();
             }
+        }
+    }
+
+    public static int executeUpdate(String sql,int i) throws SQLException{
+        try (Connection connection = getConnection()) {
 
             try (PreparedStatement updateStatement = connection.prepareStatement(sql)) {
                 return updateStatement.executeUpdate();