Answers for "finding the median value from raw data in sql"

SQL
2

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;
Posted by: Guest on July-28-2021
1

how to find median of a column sql

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));
Posted by: Guest on November-10-2020

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