Third Highest Salary In Sql Using Self Join Where N is the highest salary we want to get Offset takes the number of rows specified leaving the other rows Why N 1 because it starts from zero Step 3 Use Fetch Use fetch and get the first row That row has the highest salary The SQL looks something as shown below Performance comparison Below is the SQL plan for performance
This code first selects some columns from the tables employee and department To use NTH VALUE we have to specify the column and the value of N Since we want to get the third highest salary the column is salary and N 3 hence we have NTH VALUE salary 3 This will get us the third highest salary Here is the SQL query you can use to calculate the Nth salary SELECT name salary FROM Employee e1 WHERE N 1 SELECT COUNT DISTINCT salary FROM Employee e2 WHERE e2 salary e1 salary for the 2nd maximum you can replace N with 2 and for 3rd maximum replace N with 3 here is the output
Third Highest Salary In Sql Using Self Join
Third Highest Salary In Sql Using Self Join
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To select 3rd highest salary in SQL you can use the LIMIT clause in combination with the ORDER BY clause We are assuming you have a table named employees with a column named salary that stores the salary information We use the ORDER BY clause to sort the salaries in descending order DESC so the highest salary will come first 4 Using NTH VALUE to Find the Third Highest Salary NTH VALUE is a robust SQL window function that makes finding the nth highest value in a particular dataset easy In our case we will use it to find the third highest salary by department Here s how we can use NTH VALUE to find the third highest salary for a given department
Following query uses Dense Rank function to get the 2nd highest salary SELECT EmpName Salary FROM SELECT DENSE RANK OVER ORDER BY Salary DESC AS SNo EmpName Salary FROM Employee Sal WHERE SNo 2 As you can see In employee table 2nd highest salary is 4000 and query returns the same value Here is a way to do this task using the dense rank function Consider the following table Employee CREATE TABLE CREATE TABLE emp emp name VARCHAR 50 emp salary DECIMAL 10 2 Let s insert some random data with a random name and then we will look at how to calculate the nth highest emp salary
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Solution 1 To find the third highest salary in SQL you can use the following query sql SELECT salary FROM employees ORDER BY salary DESC LIMIT 1 OFFSET 2 Here we assume that the salary information is stored in a table called employees The query retrieves the salary column and sorts it in descending order using the ORDER BY clause WHERE 1 SELECT COUNT DISTINCT salary FROM employees e2 WHERE e2 salary e1 salary In this method we continue to use the basic SELECT statement to retrieve distinct values from the Salary column However to find the 2nd highest salary we apply a filter using the WHERE clause
FROM Employee tb1 WHERE 3 1 SELECT COUNT DISTINCT salary FROM Employee tb2 WHERE tb2 salary tb1 salary The result of the above query would be as below To deal with duplicate wages in the table a distinct keyword is used Only unique wages are considered for determining the Nth highest salary And results is 4Jayashree40000 00 7Rajesh40000 00 3Manikandan30000 00 2Asheenth20000 00 1Rajkumar10000 00 Select all Open in new window I love to see only those records employees with thrid highest salary using self join and by not using any sub query
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Third Highest Salary In Sql Using Self Join - Here is a way to do this task using the dense rank function Consider the following table Employee CREATE TABLE CREATE TABLE emp emp name VARCHAR 50 emp salary DECIMAL 10 2 Let s insert some random data with a random name and then we will look at how to calculate the nth highest emp salary