code: public function create()
  	{
  		$adapter = $this->dbAdapter;
  
  		$ddl = new Ddl\CreateTable();
  		$ddl->setTable(self::TABLE_NAME)
  			->addColumn(new Column\Integer('id', false, null, array('autoincrement' => true)))
  			->addColumn(new Column\Varchar('code', 55))
  			->addColumn(new Column\Varchar('status', 55))
  			->addColumn(new Column\Text('error_msg'))
  			->addColumn(new Column\Text('stack_trace'))
  			->addColumn(new Column\Varchar('created', 255))
  			->addColumn(new Column\Varchar('scheduled', 255))
  			->addColumn(new Column\Varchar('executed', 255))
  			->addColumn(new Column\Varchar('finished', 255))
  			->addConstraint(new Constraint\PrimaryKey('id'));
  
  		$sql = (new Sql($adapter))->getSqlStringForSqlObject($ddl);
  
  		$adapter->query($sql, $adapter::QUERY_MODE_EXECUTE);
  	}
docs: Create database table.
  
  @return void