find the median in sql

# FOR TABLES WITH EVEN NUMBER OF ROWS

# For column1 in table1 with 'n' number of rows. Where 'n' is an even number.
# 1. Change all column1 and table1 to your column and table name.
# 2. Calculate (n/2)+1, where n=number of rows, and set it as LIMIT for t1.

SELECT AVG(t2.column1)
FROM (SELECT *
	FROM (SELECT column1
      	FROM table1
     	 ORDER BY column1
     	 LIMIT (n/2)+1) AS t1
	ORDER BY column1 DESC
	LIMIT 2) AS t2;

4.67
3

                                    SET @rowindex := -1;
 
SELECT
   AVG(g.grade)
FROM
   (SELECT @rowindex:=@rowindex + 1 AS rowindex,
           grades.grade AS grade
    FROM grades
    ORDER BY grades.grade) AS g
WHERE
g.rowindex IN (FLOOR(@rowindex / 2) , CEIL(@rowindex / 2));

4.67 (3 Votes)
0
3.63
8

                                    # FOR TABLES WITH ODD NUMBER OF ROWS

# For column1 in table1 with 'n' number of rows. Where 'n' is an odd number.
# 1. Change all column1 and table1 to your column and table name.
# 2. Calculate (n/2)+0.5, where n=number of rows, and set it as LIMIT for t1.

SELECT *
FROM (SELECT column1
      FROM table1
      ORDER BY column1
      LIMIT (n/2)+0.5) AS t1
ORDER BY column1 DESC
LIMIT 1;

3.63 (8 Votes)
0
Are there any code examples left?
Create a Free Account
Unlock the power of data and AI by diving into Python, ChatGPT, SQL, Power BI, and beyond.
Sign up
Develop soft skills on BrainApps
Complete the IQ Test
Made with love
This website uses cookies to make IQCode work for you. By using this site, you agree to our cookie policy

Welcome Back!

Sign up to unlock all of IQCode features:
  • Test your skills and track progress
  • Engage in comprehensive interactive courses
  • Commit to daily skill-enhancing challenges
  • Solve practical, real-world issues
  • Share your insights and learnings
Create an account
Sign in
Recover lost password
Or log in with

Create a Free Account

Sign up to unlock all of IQCode features:
  • Test your skills and track progress
  • Engage in comprehensive interactive courses
  • Commit to daily skill-enhancing challenges
  • Solve practical, real-world issues
  • Share your insights and learnings
Create an account
Sign up
Or sign up with
By signing up, you agree to the Terms and Conditions and Privacy Policy. You also agree to receive product-related marketing emails from IQCode, which you can unsubscribe from at any time.
Creating a new code example
Code snippet title
Source