Changing year in mysql date

Question

I have a bunch of dates in our database stored in the standard mysql date type.

How can I covert a year to 2013, regardless of original date.

So if a date

Answer 1

UPDATE tableName
SET    dateColumn = dateColumn + INTERVAL 4 YEAR

• SQLFiddle Demo

other way is to concatenate it,

UPDATE Table1
SET    DateColumn = CONCAT(YEAR(CURDATE()), '-', DATE_FORMAT(dateColumn, '%m-%d'))

• SQLFiddle Demo