SELECT distinct CONCAT( "* [[", 

       CASE 

         WHEN pl_from_namespace = 0 THEN "" 

         WHEN pl_from_namespace = 1 THEN "Talk:" 

         WHEN pl_from_namespace = 2 THEN "User:" 

         WHEN pl_from_namespace = 3 THEN "User_talk:" 

         WHEN pl_from_namespace = 4 THEN "Wikipedia:"

         WHEN pl_from_namespace = 5 THEN "Wikipedia_talk:"

         WHEN pl_from_namespace = 6 THEN "File:"

         WHEN pl_from_namespace = 7 THEN "File_talk:"

         WHEN pl_from_namespace = 8 THEN "MediaWiki:"

         WHEN pl_from_namespace = 9 THEN "MediaWiki_talk:"

         WHEN pl_from_namespace = 10 THEN "Template:"

         WHEN pl_from_namespace = 11 THEN "Template_talk:"

         WHEN pl_from_namespace = 12 THEN "Help:"

         WHEN pl_from_namespace = 13 THEN "Help_talk:"

         WHEN pl_from_namespace = 14 THEN "Category:"

         WHEN pl_from_namespace = 15 THEN "Category_talk:"

         WHEN pl_from_namespace = 100 THEN "Portal:"

         WHEN pl_from_namespace = 101 THEN "Portal_talk:"

         WHEN pl_from_namespace = 108 THEN "Book:"

         WHEN pl_from_namespace = 109 THEN "Book_talk:"

         WHEN pl_from_namespace = 118 THEN "Draft:"

         WHEN pl_from_namespace = 119 THEN "Draft_talk:"

         WHEN pl_from_namespace = 446 THEN "Education_Program:"

         WHEN pl_from_namespace = 447 THEN "Education_Program_talk:"

         WHEN pl_from_namespace = 710 THEN "TimedText:"

         WHEN pl_from_namespace = 711 THEN "TimedText_talk:"

         WHEN pl_from_namespace = 828 THEN "Module:"

         WHEN pl_from_namespace = 829 THEN "Module_talk:"

         WHEN pl_from_namespace = 2300 THEN "Gadget:"

         WHEN pl_from_namespace = 2301 THEN "Gadget_talk:"

         WHEN pl_from_namespace = 2302 THEN "Gadget_definition:"

         WHEN pl_from_namespace = 2303 THEN "Gadget_definition_talk:"

       END,

       page_title, "]]" ) Link,

       page_touched Timestamp

FROM   pagelinks 

       JOIN page 

         ON pl_from = page_id 

WHERE  pl_title = 'SQL' 

       AND ( pl_namespace = 2 OR pl_namespace = 3)

ORDER BY page_touched DESC;

​