SQL Sélectionnez la valeur la plus fréquente dans la colonne

SELECT col, COUNT(col) AS value_occurrence
FROM m_table GROUP BY col ORDER BY value_occurrence DESC LIMIT 1;

-- Oracle <= 11g
SELECT * FROM (SELECT col, COUNT(col) AS value_occurrence
FROM m_table GROUP BY col ORDER BY value_occurrence DESC)
WHERE rownum = 1;
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