The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT null INTO g_null FROM obj$ o, user$ u
WHERE o.owner#=u.user# AND u.name = 'PUBLIC'
AND o.name='GV$GES_STATISTICS';
SELECT value INTO option_val FROM v$option
WHERE parameter = 'Real Application Clusters';
update registry$ set status = 9 where cid='RAC';