SQL
AخA
USE barwiki_p;
SELECT LOWER('Aachen');
SELECT REPLACE(LOWER(CONVERT(page_title USING latin1)), '_', ''),
page_title, rooturl,
SUM(IF( url=rooturl, 1, 0) ) AS rootlinks,
SUM(1) AS alllinks
FROM (
SELECT
page_title,
el_to AS url,
CONCAT(SUBSTRING_INDEX(el_to, '/', 3),'/') AS rooturl
FROM externallinks, page
WHERE el_from = page_id
AND page_namespace = 0) AS pagelinks
GROUP BY page_title, rooturl
HAVING rootlinks > 0 AND rootlinks < alllinks
AND LOCATE(LOWER(page_title), rooturl) = 0
LIMIT 200
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