The following lines contain the word 'select', 'insert', 'update' or 'delete':
update WF_NOTIFICATION_ATTRIBUTES
set EVENT_VALUE = avalue
where NOTIFICATION_ID = nid and NAME = aname;
select WNA.EVENT_VALUE
into lvalue
from WF_NOTIFICATION_ATTRIBUTES WNA
where WNA.NOTIFICATION_ID = nid and WNA.NAME = aname;
SELECT value INTO p_nlsNumericCharacters
from v$nls_parameters
where parameter = 'NLS_NUMERIC_CHARACTERS';
select installed_flag
into l_installed_flag
from wf_languages
where nls_language = p_language
and installed_flag = 'Y';