CAllDatabase::GetErrorMessage

public function GetErrorMessage()
{
	if(is_object($this->obSlave) && $this->obSlave->db_Error <> '')
		return $this->obSlave->db_Error;
	elseif($this->db_Error <> '')
	{
		return $this->db_Error."!";
	}
	else
		return '';
}