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Developer-C 11.1
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WITH table1 AS ( SELECT 'b' AS col1, 'c' AS col2, 1 AS col3, NULL AS col4 FROM dual UNION ALL SELECT 'b', 'd', 2, NULL FROM dual UNION ALL SELECT 'a', 'e', 1, NULL FROM dual UNION ALL SELECT 'a', 'f', 3, NULL ) SELECT t1.* FROM table1 t1 INNER JOIN ( SELECT col1, SUM(col3) AS col3_sum FROM table1 GROUP BY col1 ) t2 ON t1.col1 = t2.col1 ORDER BY t2.col3_sum DESC, t1.col1, t1.col3 DESC;
col1
col2
col3
col4
a
f
3
null
a
e
1
null
b
d
2
null
b
c
1
null