As the title says, I'm after a good field type for a comments field I have in a table. It will store many characters (as users can continuously add to it) so it's definitely over 255. I looked at longtext but wasn't sure...Also how do I change the field type to accept different characters such as apostrophies. Thanks.
LONGTEXT
is what you want (maybe even MEDIUMTEXT
or just TEXT
depending on the maximum length of text you're expecting: TEXT
can store up to 65KB of text, which is usually more than enough.
All of these fields can store UTF-8 encoded Unicode, so I'm not sure what you mean by the second part of your question (about apostrophies).