Nth Highest Salary Using Correlated Subquery 11 Answers Sorted by 35 You can use a Common Table Expression CTE to derive the answer Let s say you have the following salaries in the table Salaries EmployeeID Salary 10101 50 000 90140 35 000 90151 72 000 18010 39 000 92389 80 000 We will use
Let s look at the SQL query that uses the Correlated subquery to find the Nth highest income or salary form Employee table SELECT FROM Employee tb1 WHERE N 1 SELECT COUNT DISTINCT salary FROM Employee tb2 WHERE tb2 salary tb1 salary Now to see the query in action and view results on our database let s try it out 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 Query CREATE TABLE emp
Nth Highest Salary Using Correlated Subquery
Nth Highest Salary Using Correlated Subquery
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How to find Nth Highest Salary in SQL| How to find 2nd Highest Salary in SQL| SQL Interview Question - YouTube
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Find Nth Highest Salary in SQL Explained with full detailing - YouTube
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Expert Coder 1K subscribers Subscribe 2 views 1 minute ago The query is used to retrieve employees with the nth highest salary in the company It uses a subquery to count the number of Top 3 Ways to find nth Highest Salary Correlated Subquery Explained The Wise Analyst 366 subscribers Subscribe Subscribed 11K views 3 years ago SQL Challenges And Concepts In this video I
Improve this answer Follow edited May 3 2018 at 23 16 answered Aug 2 2012 at 7 46 babooney 744 5 15 35 your query would return n 1 th record from the table it should be SELECT DISTINCT Salary FROM table ORDER BY Salary DESC LIMIT n 1 1 amit karsale Feb 13 2016 at 15 01 1 What Is the Task Here Let s find the third highest salary by department This means finding the third highest value not overall but within each subset where a subset has the salaries for a given department The most helpful tool for doing this is the window functions So here s the first solution using a window function Using NTH VALUE
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For each employee the database system has to execute the correlated subquery once to calculate the average salary of the employees in the department of the current employee SQL correlated subquery in the SELECT clause example The following query returns the employees and the average salary of all employees in their departments To get the nth highest salary from a table using a subquery or a CTE in SQL you can follow these steps Sort the salaries in descending order Use a subquery or CTE to select the distinct salaries Use the LIMIT keyword to select the nth salary Return the result Here s an example
Easy SELECT lastname firstname salary FROM employee WHERE salary SELECT avg salary FROM employee Example 1 A simple non correlated SQL subquery Next up are correlated subqueries These are very special because sometimes they are the only way to solve a query However think twice before using a correlated subquery in SQL Method 1 Using DENSE RANK Function with CTE WITH ranked salaries AS SELECT salary DENSE RANK OVER ORDER BY salary DESC AS rank FROM employees SELECT salary FROM ranked salaries WHERE rank 2 In this method we first create a Common Table Expression CTE and name it ranked salaries
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Nth Highest Salary Using Correlated Subquery - Improve this answer Follow edited May 3 2018 at 23 16 answered Aug 2 2012 at 7 46 babooney 744 5 15 35 your query would return n 1 th record from the table it should be SELECT DISTINCT Salary FROM table ORDER BY Salary DESC LIMIT n 1 1 amit karsale Feb 13 2016 at 15 01 1