creating a trigger to write to a different table - Mailing list pgsql-general

can i use pl/pgsql to write a trigger to update a separate table?

for example if i have a table student:
name    text,
id    text,
group    int,
stat    int,

and another table status:
stat    text
group    int
count    int

and i update the stat in the student table, can i update the count
column in the status table to reflect the change.  in the documents, i
just see triggers used on one table.

peter choe