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Installation problem after Change of Web Provider 1 year 6 months ago #27771

Hello, I changed my provider. Joomla-Site 3.9.23 php 7.3 works properly after Akeeba-Backupinstallation - apart from JEM. Error in the basic module: the limit of events in the modules did not work.
I de-installed Jem an tried to reinstall. Errorcode: wrong database driver: pdomysql instead of mysql.
Any idea if it can be fixed or can I change the name of the database driver somewhere? As far as I know from the Akeeba-Backup installation this name came from my provider!
Thanks for any suggestions!
Andrea

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Installation problem after Change of Web Provider 1 year 6 months ago #27773

Ihad this error too. I had to change dartabase to mysqli.
on JEM 2.3.3 stable in latest Joomla (3.10.2) Protostar php7.4.15
Personally I use t4_B5 template with t4_system plugin framework with bootstrap 5 and fontawesome)
(I prefer free "Signal" or paid "Threema" instead of "Whatsapp".)
The following user(s) said Thank You: andreak

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Installation problem after Change of Web Provider 1 year 6 months ago #27774

However, mysqli is in my experience preferable for Joomla! nowadays. Some years back I already changed my websites from mysql (pdo) to mysqli because the pdo version caused problems with more than one extension.
There has been a discussion in the Joomla! forum back in 2017, but the view on the preference has been changed as far as I know. Nevertheless see: MySQLi or MySQL(PDO) when installing Joomla?
The following user(s) said Thank You: andreak

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Installation problem after Change of Web Provider 1 year 6 months ago #27775

Thank you, Wolfgang, for your helpful answer.
Unfortunately my provider, as a standard, only supports MySQLPDO.

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Installation problem after Change of Web Provider 1 year 6 months ago #27776

MySQL PDO has an advantage for PHP programmers who want to support different databases: PDO supports quite a lot of databases.
MySQLi has some enhancements that PDO does not have: PHP programmers who use that enhancements (because it is faster and sometimes more comfortable), make their software incompatible to PDO.
So while Joomla! supports both, MySQLi and MySQL PDO (and also PostgreSQL), several extensions do to (unfortuantely including JEM).
To be on the safe side, it is better to select MySQLi (which is also compatible to the MariaDB, not only to the MySQLDB) if possible.

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Last edit: by Wolfgang.

Solved: Installation problem after Change of Web Provider 1 year 6 months ago #27790

I changed the database driver back to MySQLi, now it works fine.

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