recuento múltiple en SQL

SELECT distributor_id,
    count(*) AS Total,
    sum(CASE WHEN inflevel = 'exec' THEN 1 ELSE 0 END) AS ExecCount,
    sum(CASE WHEN inflevel = 'personal' THEN 1 ELSE 0 END) AS PersonalCount
FROM yourtable
GROUP BY distributor_id
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