No; for example, Oracle uses b-trees to store (usual) indexes.  

----- Original Message ----- 
From: "david nicol" <whatever@davidnicol.com>
To: "kclug" <kclug@kclug.org>
Sent: Friday, November 22, 2002 6:10 PM
Subject: Re: Are C Data Structure Questions OK?

> > > looking for more real-world type scenarios.
> 
> in the real worrld everyone uses hashes.
> 
> 
>