code: protected void runSQL(String sql) {
  		try {
  			DataSource dataSource = commerceWarehousePersistence.getDataSource();
  
  			DB db = DBManagerUtil.getDB();
  
  			sql = db.buildSQL(sql);
  			sql = PortalUtil.transformSQL(sql);
  
  			SqlUpdate sqlUpdate = SqlUpdateFactoryUtil.getSqlUpdate(dataSource,
  					sql);
  
  			sqlUpdate.update();
  		}
  		catch (Exception e) {
  			throw new SystemException(e);
  		}
  	}
docs: Performs a SQL query.
  
  @param sql the sql query