jql to get activity on an issue

[LTH]

I'm trying to figure out this: given the issue key how can you get all the activity on that specific issue using the API.  So far everything I've tried will only give me the current state of the issue . 

[Pablo Beltran]

You can get the full history of any issue with the SQL for JIRA plugin...

select * 
from issues i inner join issuechanges c on i.id=c.issueid 
where i.key='<your issue key>'

[GabrielleJ]

There is nothing in the JQL to get the activity of an issue. You will need to get the issue history either via the JIRA REST API (create your own), an add-on (e.g. JIRACLI) or directly from the JIRA DB.

[LTH]

So if you can't use JQL how do you get the activity from the API????