calculate median sql code example
Example: 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));