T-SQL Trigger

Dear fella's,

We all know the PLSQL syntax for a trigger when your are dealing with an update/instert/delete

      WHEN UPDATING('salary') THEN
       DBMS_OUTPUT.PUT_LINE('Updating salary');
      WHEN INSERTING('insert') THEN
DBMS_OUTPUT.PUT_LINE('INSERTING');

but how do you use it in TRANSACT-SQL?

thx!