"Backward"-Iterator - Beginners question

patrick vrijlandt patrick.vrijlandt at gmail.com
Fri Nov 1 21:09:02 CET 2013


Chris Angelico <rosuav at gmail.com> wrote:
> On Fri, Nov 1, 2013 at 9:18 PM, Ulrich Goebel <ml at fam-goebel.de> wrote:
>> That gives me the solution. What I have, is an iterator object comming as a
>> SQLite database cursor object. So I could minimize the underliying SELECT
>> and build index = list(cursor). Then with Your hints I get what I want.

Well, if you want to iterate over a SQL result backwards, I would seriously
consider modifying the SELECT to yield the results in the right order. That
would avoid keeping the list in memory and makes best use of the database.


-- 
patrick



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