Two dimensions

SELECT ROUND( SQRT(POWER(MAX(LAT_N) - MIN(LAT_N), 2) + POWER(MAX(LONG_W) - MIN(LONG_W), 2)), 4 ) AS euclidean_distance FROM STATION;

Orale sample

WITH ps AS ( 
    SELECT
        min(lat_n) x1, 
        min(long_w) y1,
        max(lat_n) x2, 
        max(long_w) y2 
    FROM station)
SELECT
    round(
        SQRT(
            POWER((x2-x1),2)
            +POWER((y2-y1),2)
            )
        ,4) euclidean_distance
FROM ps;

SELECT ROUND( SQRT( POW((MAX(LAT_N)-MIN(LAT_N)),2) + POW((MAX(LONG_W)-MIN(LONG_W)),2) ) ,4) AS DISTANCIA FROM STATION;

SELECT cast( SQRT( POWER(ROUND(MAX(lat_n) - MIN(lat_n), 4), 2) + POWER(ROUND(MAX(long_w) - MIN(long_w), 4), 2) ) AS decimal(10,4)) FROM station;

• a = MIN(LAT_N)
• b = MAX(LAT_N)
• c = MIN(LONG_W)
• d = MAX(LONG_W)
• Euclidean Distance = SQRT[(b-a)^2 + (d-c)^2]

SELECT
    ROUND(SQRT(
        POWER(MAX(LAT_N) - MIN(LAT_N), 2)
        + POWER(MAX(LONG_W) - MIN(LONG_W), 2)
    ), 4)
FROM STATION

OUTPUT: 184.1616