SELECT DISTINCT bumen AS bumen,
SUM(CASE type
WHEN 'a' THEN num END) AS a,
SUM(CASE type
WHEN 'c' THEN num END) AS c,
SUM(CASE type
WHEN 'b' THEN num END) AS b FROM ttt GROUP BY bumen;

image.png

image.png
SELECT DISTINCT bumen AS bumen,
SUM(CASE type
WHEN 'a' THEN num END) AS a,
SUM(CASE type
WHEN 'c' THEN num END) AS c,
SUM(CASE type
WHEN 'b' THEN num END) AS b FROM ttt GROUP BY bumen;