Wikidata active user name prefixes

Fork of Wikidata active user name prefixes by Lucas Werkmeister (WMDE)

This query is marked as a draft This query has been published by Lucas Werkmeister (WMDE).

How often each initial letter of a user name on Wikidata occurs, counting only users who have at least one non-bot edit in the last thirty days (i. e. active users). (Note: excludes non-ASCII initial letters because SUBSTR() truncates by byte, not by code point.)

SQL

USE wikidatawiki_p;

SELECT SUBSTR(user_name, 1, 1) AS initial, COUNT(DISTINCT user_name) AS count
FROM user
WHERE user_id IN (SELECT DISTINCT rc_user FROM recentchanges WHERE rc_bot = '0')
GROUP BY initial
HAVING initial < 0x80 -- exclude truncated UTF-8 fragments
ORDER BY initial DESC

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SQL

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