How can I calculate the median of values in SQLite?

Question

I\'d like to calculate the median value in a numeric row. How can I do that in SQLite 4?

Answer 1

The SELECT AVG(x) returns just the year of date values formatted as YYYY-MM-DD, so I tweaked CL's solution just slightly to accommodate dates:

SELECT DATE(JULIANDAY(MIN(MyDate)) + (JULIANDAY(MAX(MyDate)) - JULIANDAY(MIN(MyDate)))/2) as Median_Date
FROM (
   SELECT MyDate
      FROM MyTable
      ORDER BY MyDate
      LIMIT 2 - ((SELECT COUNT(*) FROM MyTable) % 2) -- odd 1, even 2
      OFFSET (SELECT (COUNT(*) - 1) / 2 FROM MyTable)
);