import tt_content and pages form another database

gistfile1.txt

        /* @var TYPO3\CMS\Core\Database\DatabaseConnection $db */;
        $db = $GLOBALS['TYPO3_DB'];
        $db->debugOutput = true;

        $db->exec_DELETEquery('pages', 'pid = 125');
        $db->exec_DELETEquery('tt_content', 'rowDescription = "import-tagged"');

        $maxPageUid = $db->exec_SELECTgetSingleRow('MAX(uid) as max', 'pages', '1=1')['max'];
        $maxFiletUid = $db->exec_SELECTgetSingleRow('MAX(uid) as max', 'sys_file', '1=1')['max'];

        $pages = $db->exec_SELECTgetRows('*', 'pages_casestudies', 'deleted = 0 AND pid = 1');

        $pageUids = array();
        foreach ($pages as $page) {
            $page['uid'] = $page['uid'] + $maxPageUid;
            $pageUids[] = $page['uid'];
            $page['pid'] = 125;
            $db->exec_INSERTquery('pages', $page);
        }

        $rows = $db->exec_SELECTgetRows('*', 'tt_content_casestudies', 'deleted = 0');
        $maxContentUid = $db->exec_SELECTgetSingleRow('MAX(uid) as max', 'tt_content', '1=1')['max'];

        foreach ($rows as $row) {
            $row['uid'] = $row['uid'] + $maxContentUid;
            $row['pid'] = $row['pid'] + $maxPageUid;
            $row['tx_flux_parent'] = $row['tx_flux_parent'] + $maxContentUid;
            $row['rowDescription'] = 'import-tagged';
            if ($row['tx_fed_fcefile'] == 'Famelo.Template:50-50.html') {
                $row['tx_fed_fcefile'] = 'Famelo.Template:6-6.html';
            }
            if (!in_array($row['pid'], $pageUids)) {
                continue;
            }
            $db->exec_INSERTquery('tt_content', $row);
        }


        exit();