Question

I want to understand JIRA database, but I couldn’t understand the relation between the tables nodeAssocation, project and workflowscheme in terms of entity-relationship.

Is nodeassociation an association between the two tables project and workflowscheme?

Answer 1

Best way to understand the relationship is to have a look at values in association_type
For instance doing following query

SELECT association_type FROM `nodeassociation` group by association_type;

You get

• IssueComponent
• IssueFixVersion
• IssueVersion
• ProjectCategory
• ProjectScheme

For instance for

SELECT * FROM `nodeassociation` where association_type = 'IssueFixVersion';

you get the values

10010, Issue, 10003, Version, IssueFixVersion

Which relates issue with id 10010 with version with id 10003

That way you get access to the fixVersions associated to a particular issue.
Similarly you get an association between issues an components and so on..

Hope this helps,

Francis