Untitled query #17068

This query is marked as a draft This query has been published by BDA2017.
SQL

#What databases exist?
	#SHOW DATABASES;
#Select a database
USE barwiki_p;

#Page Editors Pagelength


#How many times was each page edited
#SELECT COUNT(rev_page) AS rev_counts FROM revision GROUP BY rev_page LIMIT 100;

#Add where namespace = 0
#SELECT COUNT(rev_page) AS rev_counts, page_title FROM revision JOIN page ON rev_page = page_id WHERE page_namespace = "0" GROUP BY rev_page LIMIT 100;

#Add where user_name not like bot
#SELECT COUNT(rev_page) AS rev_counts, page_title FROM revision JOIN page ON rev_page = page_id JOIN user ON rev_user = user_id WHERE user_name NOT LIKE "%bot%" AND page_namespace = "0" GROUP BY rev_page LIMIT 100;

#QUESTION 1
#Shift to editors (how many distinct editors that are not bots have edited each page in namespace = 0: - filters out unregistered users
SELECT COUNT(DISTINCT rev_user) AS usercounts, page_title, page_id FROM revision JOIN page ON rev_page = page_id JOIN user ON rev_user = user_id WHERE user_name NOT LIKE "%bot%" AND user_name NOT LIKE "%BOT%" AND  user_name NOT LIKE "%Bot%" AND user_name NOT LIKE "%BoT%" AND user_name NOT LIKE "%bo T%" AND page_namespace = "0" GROUP BY rev_page ORDER BY usercounts DESC LIMIT 100;

#QUESTION 2 (from above)
#SELECT COUNT(rev_page) AS revisioncounts, page_title FROM revision JOIN page ON rev_page = page_id JOIN user ON rev_user = user_id WHERE user_name NOT LIKE "%bot%" AND user_name NOT LIKE "%BOT%" AND  user_name NOT LIKE "%Bot%" AND user_name NOT LIKE "%BoT%" AND user_name NOT LIKE "%bo T%" AND page_namespace = "0" GROUP BY rev_page ORDER BY revisioncounts DESC;

#QUESTION 3
#SELECT page_len, page_title FROM page WHERE page_namespace = "0" ORDER BY page_len DESC;

#QUESTION 4
#SELECT page_len AS talk_len, page_title FROM page WHERE page_namespace = "1" ORDER BY page_len DESC;


#Repeat without redicrect 
#QUESTION 1
#Shift to editors (how many distinct editors that are not bots have edited each page in namespace = 0: - filters out unregistered users
#SELECT COUNT(DISTINCT rev_user) AS usercounts, page_title FROM revision JOIN page ON rev_page = page_id JOIN user ON rev_user = user_id WHERE user_name NOT LIKE "%bot%" AND user_name NOT LIKE "%BOT%" AND  user_name NOT LIKE "%Bot%" AND user_name NOT LIKE "%BoT%" AND user_name NOT LIKE "%bo T%" AND page_namespace = "0" AND page_is_redirect = "0" GROUP BY rev_page ORDER BY usercounts DESC;

#QUESTION 2 (from above)
#SELECT COUNT(rev_page) AS revisioncounts, page_title FROM revision JOIN page ON rev_page = page_id JOIN user ON rev_user = user_id WHERE user_name NOT LIKE "%bot%" AND user_name NOT LIKE "%BOT%" AND  user_name NOT LIKE "%Bot%" AND user_name NOT LIKE "%BoT%" AND user_name NOT LIKE "%bo T%" AND page_namespace = "0" AND page_is_redirect = "0" GROUP BY rev_page ORDER BY revisioncounts DESC;

#QUESTION 3
#SELECT page_len, page_title FROM page WHERE page_namespace = "0" AND page_is_redirect = "0" ORDER BY page_len DESC;

#QUESTION 4
#SELECT page_len AS talk_len, page_title FROM page WHERE page_namespace = "1" AND page_is_redirect = "0"ORDER BY page_len DESC;


#Show all tables in the database
	#SHOW TABLES;
#Get info about a table
	#DESCRIBE page; 
#Select everything from a table (or some column), limit the number of entires like .head()
	#SELECT * FROM page LIMIT 10
#Order table
	#SELECT * FROM revision ORDER by rev_timestamp LIMIT 10
#Order table but descending
	#SELECT rev_page FROM revision ORDER by rev_timestamp DESC limit 10
#Join tables
	#SELECT rev_page, page_title, rev_timestamp FROM revision JOIN page ON rev_page = page_id ORDER by rev_timestamp ASC limit 10;
    
#16    
#SELECT COUNT(rev_id) AS editcounts, rev_user, user_name, user_registration FROM revision JOIN user ON user_id = rev_user WHERE user_name NOT LIKE "%bot%" AND user_name NOT LIKE "%Bot%" GROUP by rev_user DESC LIMIT 10000;

#18
#SELECT COUNT(rev_id) AS editcounts, page_title FROM revision JOIN user ON rev_user = user_id JOIN page ON page_id  = rev_page WHERE user_name="Auntof6" and page_namespace = "0" GROUP BY rev_page ORDER BY editcounts DESC LIMIT 10;
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