Test 3 - Quarry

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

SQL

USE enwiki_p;

WITH AllCategoryCounts AS (
    SELECT
        ll_title AS category_title,
        COUNT(ll_lang) AS lang_count
    FROM
        langlinks
    GROUP BY
        ll_title
    HAVING
        lang_count > 1
)
USE ckbwiki_p;

WITH CkbCategories AS (
    SELECT
        ll_title AS ckb_category
    FROM
        langlinks
    WHERE
        ll_lang = 'en'
)
USE enwiki_p;

SELECT
    a.category_title AS category_title
FROM
    AllCategoryCounts a
LEFT JOIN
    CkbCategories c
ON
    a.category_title = c.ckb_category
WHERE
    c.ckb_category IS NULL
LIMIT 100;

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