Search notes:

ORA-02030: can only select from fixed tables/views

The following statement throws ORA-02030: can only select from fixed tables/views because V$SESSION is a synonym to V_$SESSION (as is the case for all so called V$ views): 
grant select on v$session to rene;
This statement runs ok (if the grantor has admin privileges for this select right): 
grant select on v_$session to rene;
An ORA-02030: can only select from fixed tables/views is also thrown for the same reason with the following revoke statement: 
revoke select on v$session from rene;
This one runs ok: 
revoke select on v_$session from rene;

See also

fixed table
Other Oracle error messages

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...', 1758205148, '216.73.216.150', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/databases/Oracle/errors/ORA-02030_can-only-select-from-fixed-tables-views(52): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78