THat would have been handy to know first up... the differences are not in the databases, the difference is in both the DBMS and the data extraction layer. ... However, having said that, unless there is another reason, I do not think that there should be any problem in switching a course from one DBMS to another during a backup... so there has to be something else at work here. Can the lessons be extracted from the original backups, or perhaps from a course, restore the rest of the course, then redo the lessons? That might save some time, rather than having to redo entire courses?
Backup and restore
Converting .mbz to older version
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