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;