[Koha] Restoration of old Koha database to new one

[Bob Birchall]

After installing the old database, log in to the staff client. You 
should get the 'web installer', not the Home page. Koha will detect that 
the DB needs to be upgraded and will do so.
That's a pretty big upgrade. When its done, a lot of your reports might 
need repair. If so, you'll get a warning on your 'saved reports' page.
Also examine the About page System Information tab and note any warnings.
HTH,
Bob Birchall
Calyx

On 12/02/18 23:16, Igbudu Tersoo wrote:
> Hi,
> I have installed koha 17.11 successfully. i am trying to restore data from
> an old version (Koha 3.18) . after dropping the new database and restoring
> the old one. i tried to upgrade the database schema using
>
> *koha-upgrade-schema library, then it gives this error on command line:*Use
> of uninitialized value in numeric lt (<) at
> /usr/share/koha/intranet/cgi-bin/installer/data/mysql/updatedatabase.pl
> line 5531.
> Failed to add reserve_id to reserves tables, please refresh the page to try
> again. at /usr/share/koha/intranet/cgi-bin/installer/data/mysql/
> updatedatabase.pl line 5591.
>
> please what can i do?
> Thanks.
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