Teka-teki SQL, cara memilih tanggal terbaru untuk bagian, tetapi hanya 1 baris per bagian (unik)

  SELECT *
  FROM   (SELECT i.*,
      ROW_NUMBER() OVER(PARTITION BY ldPart ORDER BY ldDate DESC) r
      FROM   inventoryReport i
      WHERE  ldPart in ('ABC123', 'BFD21', 'AA123', etc)
         )
  WHERE  r = 1