Rotlinks mit "ähnlichem" Klammerlemma

This query is marked as a draft This query has been published by Wurgl.

Rotlinks in Artikeln (außer BKS) bei denen die ersten zwei Buchstaben im Klammerteil gleich sind wie vorhandener Blaulink

SQL

SELECT pl_title, page_title
  FROM pagelinks, page
 WHERE pl_from_namespace = 0
   AND pl_namespace = 0
   AND pl_title LIKE "%\_(%"
   AND page_namespace = 0
   AND page_title LIKE CONCAT(SUBSTRING_INDEX(pl_title, "_(", 1), "\_(%")
   AND NOT EXISTS (SELECT 1
                     FROM page
                    WHERE page_namespace = 0
                      AND page_title = pl_title
                  )
LIMIT 10

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