How deep can a package be? any performance issue?

Hi experts,
Is there any performance issue if I create deep path to a class for the sake of a well organized classes?
com.mycompany.mydivision.projectA.forms.news.headlines;
com.mycompany.mydivision.projectA.forms.news.events;
com.mycompany.mydivision.projectA.dao.calendar.events;
or
a.b.c.d.e.f.g.h.i.j.k.l;??????
any reading materials on this?
Thanks

I don't know what the limit on deepness is, but there shouldn't be any performance issues. All the classes are loaded when your program starts, so the JVM doesn't need to traverse through all those directories each time you reference one of the classes.

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How to update this query and avoid performance issue?

Hi, guys:
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Edited by: lxiscas on Dec 18, 2012 7:55 AM
Edited by: lxiscas on Dec 18, 2012 7:56 AM

You are already using a function, since you're using TRUNC on invdate and whendate.
If you have indexes on those columns, then they will not be used because of the TRUNC.
Consider omitting the TRUNC or testing with Function Based Indexes.
Regarding business days:
If you search this forum, you'll find lots of examples.
Here's another 'golden oldie': http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:185012348071
Regarding performance:
Steps to take are explained from the links you find here: {message:id=9360003}
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we have a customer with low-end machines who complains very much about the
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hI fRIENDS,
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