TYPO3 V10: disable MySQL-strict-mode STRICT_TRANS_TABLES

In some cases, TYPO3 will give errors like "SQL error: Field xyz doesn't have a default value", when saving data in backend. This can be solved by disabling the MySQL-strict-mode "STRICT_TRANS_TABLES".

This strict mode can also be disabled through editing the file LocalConfiguration.php

'DB' => [

        'Connections' => [

            'Default' => [

                'charset' => 'utf8',

                //here goes DB settings

                'initCommands' => 'SET sql_mode=\'\';',