It can be done without corrupting but it is a long process. On the site mentioned in that other thread, it took me hours to do, many hours. Painstakingly checking everything in the database and testing after each deletion or change as I had to manually...  moreIt can be done without corrupting but it is a long process. On the site mentioned in that other thread, it took me hours to do, many hours. Painstakingly checking everything in the database and testing after each deletion or change as I had to manually change some things back to default in the db. It is fine with content and such. It definitely will take some time or perhaps SNS has a solution already as they've done it more than I have.  

You're right.. they always give me problems..The standard plugins in the social engine run very well.SNS wrote me that Maria DB is not suitable for me. The question is why are they only now saying this problem. Maria database would cause problems here....  moreYou're right.. they always give me problems..The standard plugins in the social engine run very well.SNS wrote me that Maria DB is not suitable for me. The question is why are they only now saying this problem. Maria database would cause problems here. Since Tuesday it's my turn on the program from Tuesday to today Friday, September 1st, 2023 and I've been working on it for 10 hours every day.
SNS was already on my server last week and couldn't solve this problem because they just hustle and don't take my problems seriously.. That's why I write publicly so that something happens.
I probably set up Socialengine 5 times this week and retranslated 8,400 Prahsen. Now I've done it again and changed the database to MYSQL..
The Prahsen where the problems were were now translated without problems, it seems to be working now...  less

No I hadn't checked your site but if you had any installed in the past, at any time, they can have made database and code edits that would interfere with an upgrade. It's why I recommend cloning the site and testing an upgrade once you get your current...  moreNo I hadn't checked your site but if you had any installed in the past, at any time, they can have made database and code edits that would interfere with an upgrade. It's why I recommend cloning the site and testing an upgrade once you get your current development issues worked out.   

I am still working on this. Trying to figure out the secret combination of steps to upgrade. Patch first and then upgrade database and PHP? Patch first and then upgrade PHP? Patch first and upgrade database? Or, upgrade server php and database first and...  moreI am still working on this. Trying to figure out the secret combination of steps to upgrade. Patch first and then upgrade database and PHP? Patch first and then upgrade PHP? Patch first and upgrade database? Or, upgrade server php and database first and then upload the patch ...?  

Where can I find the upgrade instructions for upgrading from 5.8.0? Do I upgrade first and then update the PHP and database versions or update the PHP and database versions and then update the files? Is the MariaDB only for fresh installs?