SELECT *, value - nextvalue AS diff
FROM (
SELECT m.*, LEAD(value) OVER (ORDER BY date DESC) AS nextvalue
FROM mytable m
ORDER BY
date DESC
)
WHERE rownum = 1
अपडेट करें:
कंपनी-वार परिणाम चुनने के लिए:
SELECT value - nextvalue AS diff
FROM (
SELECT m.*,
LEAD(value) OVER (PARTITION BY companyId ORDER BY date DESC) AS nextvalue,
ROW_NUMBER() OVER (PARTITION BY companyId ORDER BY date DESC) AS rn
FROM mytable m
)
WHERE rn = 1