I have a table with the column create_time which is of type INTEGER and represents the time since epoch.
I'd like to select all rows and columns, while displaying this row as a date/time in UTC format.
How do I do that?
Use FROM_UNIXTIME to convert seconds since epoch to a DATETIME, which also allows you specify a format:
FROM_UNIXTIME(create_time, '%Y-%m-%d %H:%i:%s')