query("
SELECT l.*,
c1.Course_Name AS Course1,
c2.Course_Name AS Course2
FROM Schedule_Swap_Log l
LEFT JOIN Schedule_Course_for_Group c1 ON l.SCG_ID_1 = c1.SCG_ID
LEFT JOIN Schedule_Course_for_Group c2 ON l.SCG_ID_2 = c2.SCG_ID
ORDER BY Swapped_At DESC
");
echo "