create_trigger_statement 
<create_trigger_statement>
::=
CREATE TRIGGER <trigger_name>
FOR <table_name>
AFTER <trigger_event>,...
EXECUTE (<routine>)
[WHENEVER <search_condition>]
create_trigger_statement <create_trigger_statement>
::=
CREATE TRIGGER <trigger_name>
FOR <table_name>
AFTER <trigger_event>,...
EXECUTE (<routine>)
[WHENEVER <search_condition>]