将 MySQL 中的日期转换为 yyyy-mm-dd

Question

I have a DB where the dates are stored as varchar mm/dd/yyy (12/10/2022) But I can't figure out how to convert them to yyyy-mm-dd (2022-12-10 or 2022/12/10)

This doesn't work SELECT DATE_FORMAT("06/15/2022", "%Y-%m-%d");

PS I also want to issue a SQL command to change all the dates in the DB

Answer 1

You can convert a string to a date with the function str_to_date():

select str_to_date('12/10/2022',"%m/%d/%Y");

https://www.w3schools.com/Sql/func_mysql_str_to_date.asp