SELECT * FROM TABLE_NAME
WHERE ROWID!=(SELECT MAX(ROWID) FROM TABLE_NAME D
WHERE TABLE_NAME.COL1=D.COL1 AND TABLE_NAME.COL2=D.COL2);
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DELETE FROM TABLE_NAME
WHERE ROWID!=(SELECT MAX(ROWID) FROM TABLE_NAME D
WHERE TABLE_NAME.COL1=D.COL1 AND TABLE_NAME.COL2=D.COL2)