× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. January 2002

RE: Can you do this in SQL

> From: R. Bruce Hoffman, Jr.
>
> as an aside....
>
> update ranktest
>   set rank = (select max(rank) + 1 from ranktest)
>   where dollar = (select max(dollar) from ranktest
>     where rank = 0)
>     and rank = 0
>
> if you repeatedly execute this, you get the ranking, but you have
> to repeat
> the execution of the statement until no more records are
> updated.... sqlcode
> <> 0

AIEEEEEEEEEEEEEEE!  You aren't actually proposing this as a valid solution,
are you???  If there are a million records in the file, you want to execute
this SQL statement a million tmies, thereby executing TWO MILLION
subselects?

Please, at least add some kind of disclaimer stating, "This solution only
valid on files of trivial size or in systems where performance is not an
issue."

Joe

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.