Larry Boyd writes:

>Gary Nolan wrote:
>> Please excuse me if this question has already been answered.
>> What am I going to gain/loose if I use B-trees Vs Superdex level 1.
>>

<snip good explanation of b-trees versus Superdex L1>

>What you gain with b-trees:
>
>1) Support costs included with support for Image
>2) If you don't already own Superdex or Omnidex, you don't have to buy
>   one

And

>There are probably a couple of items I left off of both the gains and
loses,
>but this gives you some idea.  Generally, Superdex L1 and Omnidex IMSAM
>products have more features and accept more indexes than b-trees, but you
buy
>b-trees when you buy Image and your support cost is one line item.  Each
has
>its advantages and disadvantages.

What about those of use using the "free" version of Superdex? 
I don't recall if that is Level 1 or not (I think it is, but 
I'm not 100% sure).  This is the version of Superdex that was 
given away free for the asking as part of the TPI project. 
(I just looked, and this Superdex is labelled the "Core 
Superdex Version", so maybe it's not Level 1!).  Anyway, 
in our case, we are using this free Superdex and it's not 
costing us anything.  I always assumed that there would come 
a day when the free Superdex would stop working (due to changes 
in Image, etc.) and we would have to do something.  Perhaps 
that day is here.

Jim Phillips                            Manager of Information Systems
E-Mail: [log in to unmask]      Therm-O-Link, Inc.
Phone: (330) 527-2124                   P. O. Box 285
  Fax: (330) 527-2123                   Garrettsville, Ohio  44231