code: public static Dialect getDialect(String url){
          if(url.startsWith("jdbc:mysql:")){
              return new MySQLDialect();
          } else if(url.startsWith("jdbc:postgresql:")){
              return new PostgreSQLDialect();
          } else if(url.startsWith("jdbc:oracle:")){
              return new OracleDialect();
          } else if(url.startsWith("jdbc:hsqldb:")){
              return new HyperSQLDialect();
          } else if(url.startsWith("jdbc:h2:")){
              return new H2Dialect();
          } else if(url.startsWith("jdbc:derby:")){
              return new DerbyDialect();
          } else if(url.startsWith("jdbc:sqlite:")){
              return new SQLiteDialect();
          } else if(url.startsWith("jdbc:sqlserver:") || url.startsWith("jdbc:jtds:sqlserver:")){
              return new SQLServerDialect();
          } else if(url.startsWith("jdbc:db2:") || url.startsWith("jdbc:db2j:")
                  || url.startsWith("jdbc:db2:ids") || url.startsWith("jdbc:informix-sqli:")
                  || url.startsWith("jdbc:as400:")){
              return new DB2Dialect();
          }
          return new StandardDialect();
      }
docs: Selects the Database Dialect based on the JDBC connection URL.
  
  @param url the JDBC Connection URL
  @return the dialect that maps to a specific JDBC URL.