leetcode 177, 178

Author: LjyYano

solution/0100-0199/0176.Second Highest Salary/README.md

@@ -46,9 +46,10 @@
 
 ```
 
-### **...**
+### **sql**
 ```
-
+select (select distinct Salary from Employee order by Salary desc limit 1 offset 1) as 
+SecondHighestSalary;
 ```
 
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0176.Second Highest Salary/README_EN.md

@@ -65,9 +65,10 @@
 
 ```
 
-### **...**
+### **sql**
 ```
-
+select (select distinct Salary from Employee order by Salary desc limit 1 offset 1) as 
+SecondHighestSalary;
 ```
 
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0176.Second Highest Salary/Solution.sql

@@ -1,2 +1,2 @@
-select (select distinct Salary from Employee order by Salary desc limit 1 offset 1) as
+select (select distinct Salary from Employee order by Salary desc limit 1 offset 1) as 
 SecondHighestSalary;

solution/0100-0199/0177.Nth Highest Salary/README.md

@@ -46,9 +46,16 @@
 
 ```
 
-### **...**
+### **sql**
 ```
-
+CREATE FUNCTION getNthHighestSalary(N INT) RETURNS INT
+BEGIN
+  set N = N-1;
+  RETURN (
+      # Write your MySQL query statement below.
+      SELECT (SELECT DISTINCT Salary FROM Employee ORDER BY Salary DESC LIMIT 1 OFFSET N) AS SecondHighestSalary
+  );
+END
 ```
 
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0177.Nth Highest Salary/README_EN.md

@@ -65,9 +65,16 @@
 
 ```
 
-### **...**
+### **sql**
 ```
-
+CREATE FUNCTION getNthHighestSalary(N INT) RETURNS INT
+BEGIN
+  set N = N-1;
+  RETURN (
+      # Write your MySQL query statement below.
+      SELECT (SELECT DISTINCT Salary FROM Employee ORDER BY Salary DESC LIMIT 1 OFFSET N) AS SecondHighestSalary
+  );
+END
 ```
 
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0178.Rank Scores/README.md

@@ -54,9 +54,12 @@
 
 ```
 
-### **...**
+### **sql**
 ```
-
+select
+    Score,
+    (select count(*) from (select distinct Score s from Scores) tmp where s>=Score) Rank
+from Scores order by Rank;
 ```
 
-<!-- tabs:end -->
+<!-- tabs:end -->

solution/0100-0199/0178.Rank Scores/README_EN.md

@@ -81,9 +81,12 @@
 
 ```
 
-### **...**
+### **sql**
 ```
-
+select
+    Score,
+    (select count(*) from (select distinct Score s from Scores) tmp where s>=Score) Rank
+from Scores order by Rank;
 ```
 
-<!-- tabs:end -->
+<!-- tabs:end -->