How to execute query after login?

Hi Gurus,
I'm developing nowadays a small system,that shows every employee his data( attendance time,vacations,execuses..etc),I just want to execute query (pop up data) once the employee logged in,as I get his login name and sysdate and execute the query.
how could this happen? do I need a process ? what is it?
How to get the system date?
thanks in advance
Pardon me,am just new here and still my terms for Developer 2000.

You can do it with a process (call it onload) or with a simple sql query mapped to a region in the home page of your application.
hope this helps

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