~Bad links from dewiki to other wikis' articles: broken

Fork of Bad links from dewiki to other wikis: redirects by Achim55
This query is marked as a draft This query has been published by Achim55.
SQL

USE dewiki_p;
SET @lenm = LENGTH('https://meta.wikimedia.org/wiki/');
SET @lenmw = LENGTH('https://www.mediawiki.org/wiki/');
SET @lenspec = LENGTH('https://species.wikimedia.org/wiki/');
SET @lenb = LENGTH('https://de.wikibooks.org/wiki/');
SET @lenn = LENGTH('https://de.wikinews.org/wiki/');
SET @lenq = LENGTH('https://de.wikiquote.org/wiki/');
SET @lens = LENGTH('https://de.wikisource.org/wiki/');
SET @lenv = LENGTH('https://de.wikiversity.org/wiki/');
SET @lenvoy = LENGTH('https://de.wikivoyage.org/wiki/');
SET @lenwikt = LENGTH('https://de.wiktionary.org/wiki/');
SET @lenen = LENGTH('https://en.wikipedia.org/wiki/');
SET @lenes = LENGTH('https://es.wikipedia.org/wiki/');
SET @lenfr = LENGTH('https://fr.wikipedia.org/wiki/');
SET @lenit = LENGTH('https://it.wikipedia.org/wiki/');
SET @lennl = LENGTH('https://nl.wiktpedia.org/wiki/');
SET @lenpl = LENGTH('https://pl.wiktpedia.org/wiki/');
SET @lenru = LENGTH('https://ru.wikipedia.org/wiki/');
SET @lensv = LENGTH('https://sv.wikipedia.org/wiki/');
#SET @w = LEFT (DATABASE(), LENGTH(DATABASE()) - 2);
#SET @l = 'de';
SELECT now() AS timestamp;
#meta
#empty links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[m:', REPLACE (iwl_title, '_', ' '), ']]') AS wikipage
FROM iwlinks
INNER JOIN page wp
ON wp.page_id = iwl_from
AND wp.page_namespace IN (0, 14)
WHERE iwl_prefix IN ('m', 'meta', 'metawikipedia')
AND iwl_title REGEXP '^ *$'
)
UNION
#broken interwiki links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[m:', REPLACE (iwl_title, '_', ' '), ']]',
               IF (EXISTS (SELECT 1 FROM metawiki_p.page cp
                           WHERE cp.page_namespace = 14
                           AND cp.page_title = iwl_title), '?cat?', '')) AS wikipage
FROM iwlinks
INNER JOIN page wp
ON wp.page_id = iwl_from
AND wp.page_namespace IN (0, 14)
AND wp.page_is_redirect = 0
WHERE iwl_prefix IN ('m', 'meta', 'metawikipedia')
AND iwl_title NOT LIKE '%:%' #temp
AND NOT EXISTS (SELECT 1 FROM metawiki_p.page cp WHERE cp.page_title = iwl_title AND cp.page_namespace = 0)
)
UNION
#broken external links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[m:', REPLACE ((SUBSTRING(REPLACE (el_to, '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenm + 1, @lenm))), '_', ' '), ']]',
               IF (EXISTS (SELECT 1 FROM metawiki_p.page cp
                           WHERE cp.page_namespace = 14
                           AND cp.page_title = (SUBSTRING(REPLACE (REPLACE (el_to, '#mw-subcategories', ''), '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenm + 1, @lenm)))), '?cat?', '')) AS wikipage
FROM externallinks
INNER JOIN page wp
ON wp.page_id = el_from
AND wp.page_namespace IN (0, 14)
AND wp.page_is_redirect = 0
WHERE ((el_to LIKE 'https://meta.wikimedia.org/wiki/%') OR (el_to LIKE 'http://meta.wikimedia.org/wiki/%'))
AND el_to NOT LIKE '%//meta.wikimedia.org/wiki/%:%' #temp
AND el_to NOT LIKE '%#%' #temp
AND el_to NOT LIKE '%\%%' #temp
AND NOT EXISTS (SELECT 1 FROM metawiki_p.page cp
                WHERE cp.page_namespace = 0
                AND cp.page_title = SUBSTRING(REPLACE (REPLACE (el_to, '#mw-subcategories', ''), '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenm + 1, @lenm))
               )
)
UNION
#mediawiki
#empty links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[mw:', REPLACE (iwl_title, '_', ' '), ']]') AS wikipage
FROM iwlinks
INNER JOIN page wp
ON wp.page_id = iwl_from
AND wp.page_namespace IN (0, 14)
WHERE iwl_prefix IN ('mw', 'mediawiki', 'mediawikiwiki')
AND iwl_title REGEXP '^ *$'
)
UNION
#broken interwiki links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[mw:', REPLACE (iwl_title, '_', ' '), ']]',
               IF (EXISTS (SELECT 1 FROM mediawikiwiki_p.page cp
                           WHERE cp.page_namespace = 14
                           AND cp.page_title = iwl_title), '?cat?', '')) AS wikipage
FROM iwlinks
INNER JOIN page wp
ON wp.page_id = iwl_from
AND wp.page_namespace IN (0, 14)
AND wp.page_is_redirect = 0
WHERE iwl_prefix IN ('mw', 'mediawiki', 'mediawikiwiki')
AND iwl_title NOT LIKE '%:%' #temp
AND NOT EXISTS (SELECT 1 FROM mediawikiwiki_p.page cp WHERE cp.page_title = iwl_title AND cp.page_namespace = 0)
)
UNION
#broken external links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[mw:', REPLACE ((SUBSTRING(REPLACE (el_to, '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenmw + 1, @lenmw))), '_', ' '), ']]',
               IF (EXISTS (SELECT 1 FROM mediawikiwiki_p.page cp
                           WHERE cp.page_namespace = 14
                           AND cp.page_title = (SUBSTRING(REPLACE (REPLACE (el_to, '#mw-subcategories', ''), '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenmw + 1, @lenmw)))), '?cat?', '')) AS wikipage
FROM externallinks
INNER JOIN page wp
ON wp.page_id = el_from
AND wp.page_namespace IN (0, 14)
AND wp.page_is_redirect = 0
WHERE ((el_to LIKE 'https://www.mediawiki.org/wiki/%') OR (el_to LIKE 'http://www.mediawiki.org/wiki/%'))
AND el_to NOT LIKE '%//www.mediawiki.org/wiki/%:%' #temp
AND el_to NOT LIKE '%#%' #temp
AND el_to NOT LIKE '%\%%' #temp
AND NOT EXISTS (SELECT 1 FROM mediawikiwiki_p.page cp
                WHERE cp.page_namespace = 0
                AND cp.page_title = SUBSTRING(REPLACE (REPLACE (el_to, '#mw-subcategories', ''), '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenmw + 1, @lenmw))
               )
)/*
UNION
#enwiki
/*#empty links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[:en:', REPLACE (iwl_title, '_', ' '), ']]') AS wikipage
FROM iwlinks
INNER JOIN page wp
ON wp.page_id = iwl_from
AND wp.page_namespace IN (0, 14)
WHERE iwl_prefix IN ('w', 'en')
AND iwl_title REGEXP '^ *$'
)
UNION*/
#broken interwiki links
/*(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[:en:', REPLACE (iwl_title, '_', ' '), ']]',
               IF (EXISTS (SELECT 1 FROM enwiki_p.page cp
                           WHERE cp.page_namespace = 14
                           AND cp.page_title = iwl_title), '?cat?', '')) AS wikipage
FROM iwlinks
INNER JOIN page wp
ON wp.page_id = iwl_from
AND wp.page_namespace IN (0, 14)
AND wp.page_is_redirect = 0
WHERE iwl_prefix IN ('w', 'en')
AND iwl_title != ''
AND iwl_title NOT LIKE '%:%' #temp
AND NOT EXISTS (SELECT 1 FROM enwiki_p.page cp WHERE cp.page_title = iwl_title AND cp.page_namespace = 0)
)
UNION
#broken external links
(SELECT CONCAT('# [[', IF (wp.page_namespace = 14, ':Kategorie:', ''), REPLACE (wp.page_title, '_', ' '), ']] ',
               '→ [[:en:', REPLACE ((SUBSTRING(REPLACE (el_to, '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenen + 1, @lenen))), '_', ' '), ']]',
               IF (EXISTS (SELECT 1 FROM enwiki_p.page cp
                           WHERE cp.page_namespace = 14
                           AND cp.page_title = (SUBSTRING(REPLACE (el_to, '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenen + 1, @lenen)))), '?cat?', '')) AS wikipage
FROM externallinks
INNER JOIN page wp
ON wp.page_id = el_from
AND wp.page_namespace IN (0, 14)
AND wp.page_is_redirect = 0
WHERE ((el_to LIKE 'https://en.wikipedia.org/wiki/%') OR (el_to LIKE 'http://en.wikipedia.org/wiki/%'))
AND el_to NOT LIKE '%//en.wikipedia.org/wiki/%:%' #temp
AND el_to NOT LIKE '%#%' #temp
AND el_to NOT LIKE '%\%%' #temp
AND NOT EXISTS (SELECT 1 FROM enwiki_p.page cp
                WHERE cp.page_namespace = 0
                AND cp.page_title = SUBSTRING(REPLACE (el_to, '?uselang=de', ''), IF ((LEFT (el_to, 5) = 'https'), @lenen + 1, @lenen))
               )
)*/
ORDER BY wikipage
LIMIT 1000;
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