//Returns Date time
//Takes where to add (as in year, month, day, etc) to
//Takes how much to add
//Takes a datetime in some different formats
DATEADD(day, 1, '2017/08/25') UPDATE classes
SET `date` = DATE_ADD(`date`, INTERVAL 2 DAY)
WHERE id = 161DATEADD(HOUR, 2, GETUTCDATE())SELECT GETDATE() 'Today',
DATEADD(day,-2,GETDATE()) 'Today - 2 Days'
SELECT GETDATE() 'Today',
DATEADD(dd,-2,GETDATE()) 'Today - 2 Days'
SELECT GETDATE() 'Today',
DATEADD(d,-2,GETDATE()) 'Today - 2 Days'
UPDATE classes
SET `date` = DATE_ADD(`date` , INTERVAL 2 DAY)
WHERE `id` = 161;SELECT GETDATE() - 1