Re: OK, stupid question about picture managment programs...

On Sun, 08 Jan 2006 08:59:57 -0700, "Roger N. Clark (change username
to rnclark)" <username@xxxxxxxxx> wrote:

>Andrew Rowley wrote:
>
>> Paul Allen <"paul dot l dot allen at comcast dot net"> wrote:
>>
>>

>
>I agree.
>I wrote a database program in 1984, all using unix shell scripts
>and creating a set of ascii files that get searched linearly.
>Because of the simplicity, there is essentially no maintenance.
>It has been running since 1984 with no changes. The only maintenance

I'm no database administrator, but I suspect that you are vastly
simplifying the problem. At a minimum, don't you need a backup
strategy. Indices or disk organization to maximize search speed. A
security for access control and protection against unauthorized
modifications? A strategy for culling outdated information or
duplicates? For doing internal consistency checks? I never heard of
any large dataset where the data as input was 100% clean and useable.

>is to edit the list of disks to search or not search (we have about
>37 disks comprising 22.4 terabytes) and to copy the
>scripts to a new machine after a hardware
>upgrade. Currently there are 440,208 entries (the database is
>spectra) spread over 9,477 ascii files. A brute force linear

Whatever it is, it's pretty large!
>search of the ascii ascii files (a script using the unix grep
>command) with 440,208 entries takes 0.17
>second on an Itanium 2 unix system. One does not need a complex
>database.

This one is rich. Most of use don't have an Itanium 2 Unix system.
We use pokey old Pentium 4s or Athlons in single-processor systems.

Father Kodak
>
>Roger

.

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