Refactor QueryHelper.java to improve SQL statements

The SQL statements are improved to include the database name in a more explicit manner in QueryHelper.java class. The statement was modified from "USE" + database to "use `" + database + '`;'. This change enhances the readability and specificity of the SQL statements within the codebase.

Author: coilgner

src/main/java/de/goldendeveloper/mysql/interfaces/QueryHelper.java

@@ -49,7 +49,7 @@ default <T> List<T> executeQuery(String query, ResultSetHandler<T> handler, MYSQ
         List<T> results = new ArrayList<>();
         try {
             Statement statement = mysql.getConnect().createStatement();
-            statement.execute("USE " + database);
+            statement.execute("use `" + database + "`;");
             ResultSet rs = statement.executeQuery(query);
             while (rs.next()) {
                 T result = handler.handle(rs);
@@ -89,7 +89,7 @@ default void executeUpdate(String query, MYSQL mysql) {
     default void executeUpdate(String query, MYSQL mysql, String database) {
         try {
             Statement statement = mysql.getConnect().createStatement();
-            statement.execute("USE " + database);
+            statement.execute("use `" + database + "`;");
             statement.execute(query);
             mysql.closeRsAndSt(null, statement);
         } catch (Exception e) {