SQL
AخA
SELECT Pd.page_title, CONCAT(SUBSTRING_INDEX(Pd.page_title, "_", 1),"_",
UPPER(CONVERT(SUBSTRING(Pd.page_title, LOCATE("_", Pd.page_title)+1, 1) USING latin1)),
SUBSTRING(Pd.page_title, LOCATE("_", Pd.page_title)+2))
FROM categorylinks
JOIN page Pd ON Pd.page_id = cl_from AND Pd.page_title REGEXP "_[a-z]" AND SUBSTRING(Pd.page_title, LOCATE("_", Pd.page_title)+2, 1) REGEXP "[a-z]" AND Pd.page_namespace = 0
JOIN page Pa ON Pa.page_namespace = 0 AND Pa.page_is_redirect = 0
AND Pa.page_title = CONCAT(SUBSTRING_INDEX(Pd.page_title, "_", 1),"_",
UPPER(CONVERT(SUBSTRING(Pd.page_title, LOCATE("_", Pd.page_title)+1, 1) USING latin1)),
SUBSTRING(Pd.page_title, LOCATE("_", Pd.page_title)+2))
WHERE cl_to = "All_disambiguation_pages" AND cl_type = "page"
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