Create find-cities-in-each-state.sql

kamyu104 · Jun 27, 2024 · 4c95890 · 4c95890
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commit 4c95890
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/MySQL/find-cities-in-each-state.sql b/MySQL/find-cities-in-each-state.sql
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+# Time:  O(nlogn)
+# Space: O(n)
+
+SELECT state, GROUP_CONCAT(city ORDER BY city SEPARATOR ', ') AS cities
+FROM cities
+GROUP BY 1
+ORDER BY 1;