Since the structure from both database system are different, believe that the best approach would be:
1. Create a XML backup from HSQL instance
2. Import it into a MYSQL instancehehehe
Also, if you're trying to import a few number of ticket, perhaps you should try to do it by a CSV file. For further details about that, please use the following link as your guideline:
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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