You really should avoid using SQL for this sort of thing.
But if you insist on doing it the wrong way, look in the issuelink table - it's got source, destination and link type (although you'll need to look the issue ids up in jiraissue and the link types in issuelinktype)
why not using JIRA components for that? its highly risky to write directly into the database. You may get issues with caches and events. You may leave data inconsistences in the database. Something is wrong with you design. Provide more information why you are about to do that.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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