× 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. RPG400-L
  3. November 2015

Re: Ascend and data structure lookups.

%lookup is a binary search.

"...The %LOOKUPxx built-in functions use a binary search for sequenced arrays (arrays that have the ASCEND or DESCEND keyword specified). ..."

http://www-01.ibm.com/support/knowledgecenter/SSPSQF_9.0.0/com.ibm.etools.iseries.langref.doc/evfrilsh855.htm

On 11/25/2015 3:16 PM, Alan Campin wrote:
Issue is not sort of data. Data is loaded by an SQL in key order. What I am
wanting to do is do a binary search on the data. I know it is in the right
order. A solution that I know works is to use bsearch. I was just trying to
figure out if IBM had a way to do the binary search on a lookup over a data
structure. As far as I know they don't. Just trying to see if someone has a
way to make it work.


As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
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.