function up_4012_4100($_prefix, $_link)
{
    $commands[] = array(1146, "TRUNCATE TABLE `" . DBManager::RealEscape($_prefix) . "operators`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `groups` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL AFTER `last_chat_allocation`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `groups_hidden` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL AFTER `groups_status`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `fullname` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' AFTER `login_id`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `description` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' AFTER `fullname`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `email` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' AFTER `fullname`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `permissions` VARCHAR( 32 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' AFTER `email`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `webspace` INT( 11 ) UNSIGNED NOT NULL DEFAULT '0' AFTER `permissions`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `languages` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `auto_accept_chats` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `login_ip_range` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `password_change` VARCHAR( 32 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' AFTER `password`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `password_change_request` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `system_id` VARCHAR( 32 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' AFTER `id`;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `websites_users` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `websites_config` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "operators` ADD `sign_off` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "visitor_goals` ADD `query` INT( 11 ) unsigned NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `dynamic` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '1';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `description` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `external` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `internal` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `created` INT( 11 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `email` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `standard` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `opening_hours` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `functions` VARCHAR( 32 ) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `chat_inputs_hidden` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `ticket_inputs_hidden` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `chat_inputs_required` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `ticket_inputs_required` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `max_chats` INT( 11 ) NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `hide_chat_group_selection` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `hide_ticket_group_selection` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0';");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "groups` ADD `visitor_filters` TEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $commands[] = array(1050, "CREATE TABLE IF NOT EXISTS `" . DBManager::RealEscape($_prefix) . "images` (`id` INT UNSIGNED NOT NULL DEFAULT '0',`online` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '0',`button_type` varchar(32) COLLATE utf8_bin NOT NULL DEFAULT '',`image_type` varchar(32) COLLATE utf8_bin NOT NULL DEFAULT '',`data` LONGTEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL, PRIMARY KEY (`id`,`button_type`,`image_type`,`online`)) ENGINE = MYISAM CHARACTER SET utf8 COLLATE utf8_bin;");
    $commands[] = array(1050, "CREATE TABLE IF NOT EXISTS `" . DBManager::RealEscape($_prefix) . "stats_aggs_goals_queries` (`year` smallint(5) unsigned NOT NULL DEFAULT '0',`month` tinyint(3) unsigned NOT NULL DEFAULT '0',`day` tinyint(3) unsigned NOT NULL DEFAULT '0',`goal` int(10) unsigned NOT NULL DEFAULT '0',`query` int(10) unsigned NOT NULL DEFAULT '0',`amount` int(10) unsigned NOT NULL DEFAULT '0',PRIMARY KEY (`year`,`month`,`day`,`goal`,`query`),KEY `target` (`goal`),KEY `query` (`query`)) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin;");
    $commands[] = array(1060, "ALTER TABLE `" . DBManager::RealEscape($_prefix) . "visitor_browsers` ADD `pre_message` MEDIUMTEXT CHARACTER SET utf8 COLLATE utf8_bin NOT NULL;");
    $res = processCommandList($commands, $_link);
    // import buttons
    ServerManager::ImportButtons(LIVEZILLA_PATH . "banner/", $_prefix, $_link);
    return $res;
}
 static function CreateTables($id = 0)
 {
     if (OperatorRequest::IsAdministrator(true)) {
         $connection = new DBManager($_POST[POST_INTERN_DATABASE_USER], $_POST[POST_INTERN_DATABASE_PASS], $_POST[POST_INTERN_DATABASE_HOST], "", $_POST[POST_INTERN_DATABASE_PREFIX]);
         $engine = !empty($_POST["p_db_eng"]) && $_POST["p_db_eng"] == "InnoDB" ? "InnoDB" : "MyISAM";
         if (!empty($_POST["p_db_ext"])) {
             DBManager::$Extension = strtolower($_POST["p_db_ext"]);
         }
         if (DBManager::$Extension == "mysql" && !function_exists("mysql_connect")) {
             Server::$Response->SetStandardResponse($id, base64_encode("PHP MySQL extension is missing (php_mysql.dll)"));
             return false;
         } else {
             if (DBManager::$Extension == "mysqli" && !function_exists("mysqli_connect")) {
                 Server::$Response->SetStandardResponse($id, base64_encode("PHP MySQLi extension is missing (php_mysqli.dll)"));
                 return false;
             }
         }
         $connection->InitConnection();
         if (!DBManager::$Provider) {
             $error = DBManager::GetError();
             Server::$Response->SetStandardResponse($id, base64_encode("Can't connect to database. Invalid host or login! (" . DBManager::GetErrorCode() . (!empty($error) ? ": " . $error : "") . ")"));
             return false;
         } else {
             $connection->Query(false, "SET character_set_results = 'utf8', character_set_client = 'utf8', character_set_connection = 'utf8', character_set_database = 'utf8', character_set_server = 'utf8'");
             $db_selected = $connection->SelectDatabase(DBManager::RealEscape($_POST[POST_INTERN_DATABASE_NAME]));
             if (!$db_selected) {
                 if (!empty($_POST[POST_INTERN_DATABASE_CREATE])) {
                     $resultcr = $connection->Query(false, "CREATE DATABASE `" . DBManager::RealEscape($_POST[POST_INTERN_DATABASE_NAME]) . "`");
                     if (!$resultcr) {
                         Server::$Response->SetStandardResponse($id, base64_encode(DBManager::GetErrorCode() . ": " . DBManager::GetError()));
                     } else {
                         unset($_POST[POST_INTERN_DATABASE_CREATE]);
                         return ServerManager::CreateTables();
                     }
                 } else {
                     Server::$Response->SetStandardResponse(2, base64_encode(DBManager::GetErrorCode() . ": " . DBManager::GetError()));
                 }
             } else {
                 $resultvc = $connection->Query(false, "SELECT `version`,`chat_id`,`ticket_id` FROM `" . DBManager::RealEscape($_POST[POST_INTERN_DATABASE_PREFIX]) . DATABASE_INFO . "` ORDER BY `version` DESC LIMIT 1");
                 if ($rowvc = @DBManager::FetchArray($resultvc)) {
                     if (VERSION != $rowvc["version"] && !empty($rowvc["version"])) {
                         $upres = ServerManager::InitUpdateDatabase($rowvc["version"], $connection, $_POST[POST_INTERN_DATABASE_PREFIX], $engine);
                         if ($upres === true) {
                             Server::$Response->SetStandardResponse(1, base64_encode(""));
                             return true;
                         }
                     }
                 }
                 $resultv = $connection->Query(false, $sql = "SELECT VERSION() as `mysql_version`");
                 if (!$resultv) {
                     Server::$Response->SetStandardResponse($id, base64_encode(DBManager::GetErrorCode() . ": " . DBManager::GetError() . "\r\n\r\nSQL: " . $sql));
                     return false;
                 } else {
                     $mrow = @DBManager::FetchArray($resultv);
                     $mversion = explode(".", $mrow["mysql_version"]);
                     if (count($mversion) > 0 && $mversion[0] < MYSQL_NEEDED_MAJOR) {
                         Server::$Response->SetStandardResponse($id, base64_encode("LiveZilla requires MySQL version " . MYSQL_NEEDED_MAJOR . " or greater. The MySQL version installed on your server is " . $mrow["mysql_version"] . "."));
                         return false;
                     }
                 }
                 $commands = explode("###", str_replace("<!--engine-->", $engine, str_replace("<!--version-->", VERSION, str_replace("<!--prefix-->", $_POST[POST_INTERN_DATABASE_PREFIX], file_get_contents(LIVEZILLA_PATH . "_definitions/dump.lsql")))));
                 foreach ($commands as $sql) {
                     if (empty($sql)) {
                         continue;
                     }
                     $result = $connection->Query(false, trim($sql));
                     if (!$result && DBManager::GetErrorCode() != 1050 && DBManager::GetErrorCode() != 1005 && DBManager::GetErrorCode() != 1062) {
                         Server::$Response->SetStandardResponse($id, base64_encode(DBManager::GetErrorCode() . ": " . DBManager::GetError() . "\r\n\r\nSQL: " . $sql));
                         return false;
                     }
                 }
                 ServerManager::ImportButtons(PATH_IMAGES . "buttons/", $_POST[POST_INTERN_DATABASE_PREFIX], $connection);
                 DBManager::$Connector = $connection;
                 Server::$Response->SetStandardResponse(1, base64_encode(""));
                 return true;
             }
         }
     }
     return false;
 }