Search notes:

ORA-03114: not connected to ORACLE

The ORA-03114: not connected to ORACLE error is likely to be caused by ORA-03113: end-of-file on communication channel.
SQL> alter session set events 'immediate crash'
…
ORA-03113: end-of-file on communication channel
…

SQL> select * from dual;
…
ORA-03114: not connected to ORACLE

See also

Other Oracle error messages such as ORA-03113: end-of-file on communication channel
Forcefully killing a session

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1740535121, '3.12.76.129', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/databases/Oracle/errors/ORA-03114_not-connected-to-ORACLE(49): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78