Re: Learning qsort

I wouldn't use a green screen. I'd use a browser and let query or whatever worry about it!

But the qsort could be coded to reverse the sort order fairly easily - or for that matter just write and extra procedure - they are all pretty much clones of one another so no big deal.

Frankly I don't find the criteria realistic. Users usually want one thing or another. As long as they can easily go tot he end of a list I'm not convinced ascending and descending is useful Just because you _can_ do something doesn't mean you should!

No matter what technique you use - qsort or Bruce's API reference or SQL you still have a lot of work to do.

On Dec 14, 2019, at 1:06 AM, Booth Martin <booth@xxxxxxxxxxxx> wrote:

1. State-up, City-up
2. State-up, City-down
3. State-down, City-up
4. State-down, City-down
5. City-up, State-up
6. City-up,State-down
7. City-down, State-up
8. City-down, State-down

State-up, City-up != City-up,State-up

Here is the practice exercise: A two-column subfile; State & City. Click either heading and sort by that column. Clicking a column heading a second time reverses the sort. Maintain the current sorting order for the non-clicked column. This is the same behavior that we see and are used to in our e-mail folders.

On 12/13/2019 6:57 PM, Jon Paris wrote:

If you have two keys the worst case scenario is 2 procedures, A in B, and B in A. Unless you also need A only and B only. That would be four procedures but could be achieved by just two and short circuit logic when a single key was needed.

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