Get all pages in a category

SQL

#1
SELECT MIN(rev_id), rev_user_text, rev_user, rev_timestamp, page_title, cl_to
#2
FROM enwiki_p.page p 
#3
INNER JOIN enwiki_p.categorylinks cl ON p.page_id = cl.cl_from 
#4
INNER JOIN enwiki_p.revision r ON p.page_id = r.rev_page 
#5
WHERE p.page_namespace = 0
#6
AND cl.cl_to IN ("The_Hobbit_(film_series)") 
#7

AND src.page_title LIKE '%('

GROUP BY page_id;

#LINE 1: declare which database fields (columns) you want to include in your output. 
#You can include any fields from any of the tables you are joining (in this case: page, categorylinks, revision)

#LINE 2: declare which wiki you are pulling data from. 
#In this case, commonswiki_p. You can find a full list here: https://tools.wmflabs.org/tools-info/?dblist=s1.labsdb

#LINE 3: join the page table with the categorylinks table on their COMMON KEY, which is the id of the page. 

#LINE 4: join the page table with the revision table on their COMMON KEY, which is the id of the page. 

#LINE 5: specify the numeric namespace(s) of the pages you want to get information for. 
#There is a list of standard namespaces here: https://en.wikipedia.org/wiki/Wikipedia:Namespace

#LINE 6: specify the category(ies) that the pages are in. If you wanted to get pages from multipe categories, 
#you would write the query the same way: AND cl.cl_to IN ("My_first_category", "Another_category")

#LINE 7: specify that you want to return the revision information from the FIRST revision to the page. 
#Revision ids are sequential, so the first revision to a page will have a lower rev_id number
#than all the other edits to that page.
SQL

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