SELECT ID, PROJECT_ID, YEAR
FROM PROJECT AS P1
JOIN (SELECT PROJECT_ID, MIN(YEAR) AS YEAR
FROM PROJECT
GROUP BY PROJECT_ID
) AS P2
ON P1.PROJECT_ID = P2.PROJECT_ID AND P1.YEAR = P2.YEAR
SELECT ID, PROJECT_ID, YEAR
FROM PROJECT
WHERE (PROJECT_ID, YEAR) IN
(
SELECT PROJECT_ID, MIN(YEAR) AS YEAR
FROM PROJECT
GROUP BY PROJECT_ID
)