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-- create the tables CREATE TABLE tableA ( id INTEGER PRIMARY KEY ); CREATE TABLE tableB ( id INTEGER PRIMARY KEY, columnA INTEGER , fkid INTEGER, FOREIGN KEY (fkid) REFERENCES tableA(id) ); -- insert some values INSERT INTO tableA VALUES (1); INSERT INTO tableB VALUES (1, 1, 1); INSERT INTO tableB VALUES (2, 2, 1); INSERT INTO tableA VALUES (2); INSERT INTO tableB VALUES (3, 1, 2); WITH cte AS ( SELECT a.id, b.columnA, ROW_NUMBER() OVER (PARTITION BY a.id ORDER BY b.columnA DESC) rn FROM tableA a INNER JOIN tableB b ON b.fkid = a.id ) SELECT id, columnA FROM cte WHERE rn = 1;
id
columnA
1
2
2
1