Re: Name-List 77 contains TASS variable

[Chris Albertson <chrisalbertson90278@yahoo.com>]

--- "Shawn Dvorak (Rolling Hills Obs)" <rollinghillsobs@cfl.rr.com>
wrote:
> ...My experience with the Mark III
> database was that it was way too slow to remotely pull large data
> sets to do
> things like search for stars with large W-S stats.  Maybe this is
> easier/faster now?

Ah, I knew I could get some good information If I ask people who
are actually doing work.  Yes it will always be too slow to remotely
pull large data sets as our idea of what is "large" keeps
growing.  The way to do a search is NOT to pull all
the data then search it locally but to ask the database for
"All the stars with (for example) a large W-S stat".  Or maybe
ask it for the "top 100 W-S that is between two RA values
and two dec value and within some Magnitude limit.
The idea is to NEVER transmit a large dataset.

The database should be smart enough to accept fairly complex
querries.  So my question, again is what would you ask for?
Almost anything is possable such as the result of some user
defined function being within some limits, or, a cross ID to some
"standard" catalog.  Again the idea is that you do the
"disk thrashing" on the database end.

It is also possible to set up a "trap" or "trigger":  Define
an event or statistical relationship yu want to see and have
it notify you when data meeting that criteria are stored.
Modern data bases can do qute a bit of work for you.



> 
> Shawn
> 
> ----- Original Message -----
> From: "Chris Albertson" <chrisalbertson90278@yahoo.com>
> To: "Shawn Dvorak (Rolling Hills Obs)" <rollinghillsobs@cfl.rr.com>;
> "TASS
> List" <TASS@listserv.wwa.com>
> Sent: Monday, June 02, 2003 8:55 PM
> Subject: Re: Name-List 77 contains TASS variable
> 
> 
> >
> > --- "Shawn Dvorak (Rolling Hills Obs)" <rollinghillsobs@cfl.rr.com>
> > wrote:
> > > ... Of course, there's still lots of undiscovered variables in
> > > the Mark III data, and a lot more in the Mark IV archives.
> >
> > What do you think is the main bottle neck in finding these?
> > What would speed up the search through this data?
> > I'm thinking about building some database search tools.
> >
> > =====
> > Chris Albertson
> >   Home:   310-376-1029  chrisalbertson90278@yahoo.com
> >   Cell:   310-990-7550
> >   Office: 310-336-5189  Christopher.J.Albertson@aero.org
> >   KG6OMK
> >
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> 


=====
Chris Albertson
  Home:   310-376-1029  chrisalbertson90278@yahoo.com
  Cell:   310-990-7550
  Office: 310-336-5189  Christopher.J.Albertson@aero.org
  KG6OMK

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