Create 176-second-highest-salary.sql

Author: everthis

176-second-highest-salary.sql

@@ -0,0 +1,14 @@
+# Write your MySQL query statement below
+SELECT max(Salary) AS SecondHighestSalary
+FROM Employee
+WHERE Salary < (SELECT max(Salary) FROM Employee)
+
+# another
+
+# Write your MySQL query statement below
+SELECT IFNULL(
+    (SELECT DISTINCT Salary 
+    FROM Employee 
+    ORDER BY Salary DESC
+    LIMIT 1 OFFSET 1)
+    , NULL) AS SecondHighestSalary