SQL сегодня в полночь
SELECT DATEADD(d, 0, DATEDIFF(d, 0, GETDATE()))
Dangerous Duck
SELECT DATEADD(d, 0, DATEDIFF(d, 0, GETDATE()))#Today midnight is same as the next day at 0000hrs
#today at 23:59:59
SELECT (CURDATE()+ INTERVAL 1 DAY - INTERVAL 1 SECOND); #return
#tomrrow at 0000hrs
# You can skip adding the timesamp
SELECT TIMEsTAMP(CURDATE()+ INTERVAL 1 DAY);