Question

How can I convert a column with TIMESTAMP to DATETIME and retain the dates? I’m using PHPMyAdmin.

Also timestamp had the option to autofill, is there a way to do so in DATETIME? Or should I insert it each time with PHP?

thanks

Answer 1

If this query

ALTER TABLE table CHANGE `time` `time` datetime

will lose dates you can create new column then assign old values then delete old column and rename new one

ALTER TABLE table ADD `datetime` datetime AFTER `time`;
UPDATE table set datetime=time;
ALTER TABLE table DROP datetime;
ALTER TABLE CHANGE `datetime` `time` datetime

Read this:
This means, for example, that you cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE.