That's really not telling us anything about what you mean to do. If it's a standard custom field, then it already has a "connection" to the database, for it's configuration, data storage, and usage. So the word "connection" is too vague to form your question.
What are you actually trying to achieve? Why do you say "connect to database" or more importantly, why have you suggested that as an answer to what you're trying to do, without explaining the real goal?
The Jira Marketing team is putting together an ebook on migrating to Data Center. We're looking for pro tips on how you staffed your project team and organized your Proof of Concept. Share yo...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG