Re: Error while restoring course use restore-backup.php and moosh

I see mysql_collation.php ran and converted 494 table collations, skipping
1317 tables with 0 errors, but what command did you issue?  What collation did you use in the command?
What is the collation in your config.php file?

For that matter, what is the engine of all of your tables?
InnoDB?

In a git acquired code directory for 3.9.22+ (Build: 20230707)
there is a mysql_engine.php script.   Gone in 4.0.x and higher.
Guess moodle HQ thinks that all sites have, by now, changed DB engine
to InnoDB.

Your query of mdl_user table clearly shows username d960231 has
2 ... repeat 2 accounts.  A very early one (ID 74) and probably the most
recently imported 1620.   That user been around a long time!!!!

"I need to solve error warning  Default exception handler: Error writing to database Debug: Duplicate entry '0-d960231' for key 'mdl_user_mneuse_uix' when restore course to another site"

But why?