There is such a demand, the bulk of the database comment date postponed all year
The function used DATE_ADD
1, check out qualified data
SELECT OrderId,DATE_ADD(OrderDate,INTERVAL 2 DAY) AS OrderPayDate FROM Orders
2, update data
UPDATE table c set c.time = DATE_ADD(c.time, INTERVAL 1 YEAR) WHERE c.time < '2018-12' and c.time > '2015' ;
Mean, "time" field between 2015-2018-12, an additional year.