Trigger / Procedure related keywords

[Richie765]

Could trigger / procedure related keywords be implemented?
Here are a couple of them:

before delete on
after delete on
before update on
after update on
before insert on
after insert on

for each row
execute procedure
returns trigger
return
language plpgsql

perform
raise exception

if
elsif
else
end if

Thanks!

[winstliu]

Do you know which SQL variants support these keywords?

[Cxarli]

Seems to be PostgreSQL (at least language plpgsql is)

[Richie765]

The list was meant for PostgreSQL, but most of them are also valid for MySQL.
As far as I can tell, the following ones are PostgreSQL specific:

execute procedure
returns trigger
return
language plpgsql
perform
raise exception