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joseantoniochacon · Oct 2, 2024 · d562a6d · d562a6d
1 parent 3512a40
commit d562a6d
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/0626-exchange-seats/0626-exchange-seats.sql b/0626-exchange-seats/0626-exchange-seats.sql
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+# Write your MySQL query statement below
+
+SELECT CASE
+    WHEN MOD(id, 2) = 0 THEN id - 1
+    WHEN LEAD(id) OVER(ORDER BY id) IS NOT NULL THEN id + 1
+    ELSE id
+END
+AS id, student FROM Seat ORDER BY id;
+