Announcement

Collapse

The Alpha Software Forum Participation Guidelines

The Alpha Software Forum is a free forum created for Alpha Software Developer Community to ask for help, exchange ideas, and share solutions. Alpha Software strives to create an environment where all members of the community can feel safe to participate. In order to ensure the Alpha Software Forum is a place where all feel welcome, forum participants are expected to behave as follows:
  • Be professional in your conduct
  • Be kind to others
  • Be constructive when giving feedback
  • Be open to new ideas and suggestions
  • Stay on topic


Be sure all comments and threads you post are respectful. Posts that contain any of the following content will be considered a violation of your agreement as a member of the Alpha Software Forum Community and will be moderated:
  • Spam.
  • Vulgar language.
  • Quotes from private conversations without permission, including pricing and other sales related discussions.
  • Personal attacks, insults, or subtle put-downs.
  • Harassment, bullying, threatening, mocking, shaming, or deriding anyone.
  • Sexist, racist, homophobic, transphobic, ableist, or otherwise discriminatory jokes and language.
  • Sexually explicit or violent material, links, or language.
  • Pirated, hacked, or copyright-infringing material.
  • Encouraging of others to engage in the above behaviors.


If a thread or post is found to contain any of the content outlined above, a moderator may choose to take one of the following actions:
  • Remove the Post or Thread - the content is removed from the forum.
  • Place the User in Moderation - all posts and new threads must be approved by a moderator before they are posted.
  • Temporarily Ban the User - user is banned from forum for a period of time.
  • Permanently Ban the User - user is permanently banned from the forum.


Moderators may also rename posts and threads if they are too generic or do not property reflect the content.

Moderators may move threads if they have been posted in the incorrect forum.

Threads/Posts questioning specific moderator decisions or actions (such as "why was a user banned?") are not allowed and will be removed.

The owners of Alpha Software Corporation (Forum Owner) reserve the right to remove, edit, move, or close any thread for any reason; or ban any forum member without notice, reason, or explanation.

Community members are encouraged to click the "Report Post" icon in the lower left of a given post if they feel the post is in violation of the rules. This will alert the Moderators to take a look.

Alpha Software Corporation may amend the guidelines from time to time and may also vary the procedures it sets out where appropriate in a particular case. Your agreement to comply with the guidelines will be deemed agreement to any changes to it.



Bonus TIPS for Successful Posting

Try a Search First
It is highly recommended that a Search be done on your topic before posting, as many questions have been answered in prior posts. As with any search engine, the shorter the search term, the more "hits" will be returned, but the more specific the search term is, the greater the relevance of those "hits". Searching for "table" might well return every message on the board while "tablesum" would greatly restrict the number of messages returned.

When you do post
First, make sure you are posting your question in the correct forum. For example, if you post an issue regarding Desktop applications on the Mobile & Browser Applications board , not only will your question not be seen by the appropriate audience, it may also be removed or relocated.

The more detail you provide about your problem or question, the more likely someone is to understand your request and be able to help. A sample database with a minimum of records (and its support files, zipped together) will make it much easier to diagnose issues with your application. Screen shots of error messages are especially helpful.

When explaining how to reproduce your problem, please be as detailed as possible. Describe every step, click-by-click and keypress-by-keypress. Otherwise when others try to duplicate your problem, they may do something slightly different and end up with different results.

A note about attachments
You may only attach one file to each message. Attachment file size is limited to 2MB. If you need to include several files, you may do so by zipping them into a single archive.

If you forgot to attach your files to your post, please do NOT create a new thread. Instead, reply to your original message and attach the file there.

When attaching screen shots, it is best to attach an image file (.BMP, .JPG, .GIF, .PNG, etc.) or a zip file of several images, as opposed to a Word document containing the screen shots. Because Word documents are prone to viruses, many message board users will not open your Word file, therefore limiting their ability to help you.

Similarly, if you are uploading a zipped archive, you should simply create a .ZIP file and not a self-extracting .EXE as many users will not run your EXE file.
See more
See less

Programming Puzzle 8 - Sort of a Sort

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • aschone
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    I avoid using record numbers in code like the plague. You can put the table in record number order, fetch the last record and return record number 200. However the table only has 2 records in it. This can happen when records are deleted but the table is not packed. When the table is packed the records are renumbered. So in this example once you pack the table the last record will report a record number of 2.

    Retrieving the record count is the appropriate method to get the correct total of un-deleted records in a table.

    Leave a comment:


  • Tom Cone Jr
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Right.

    But when you change the sort sequence you do not change the physical record numbers. The new "last" record may have a different "record number". The "last" record by sort sequence is not the same as the "last" physical record in the table. And, they will often ( if not usually ) have different "record numbers". The <tbl>.recno() method is looking at physical record numbers, not logical record positions in the current sort sequence.

    Leave a comment:


  • jeb richardson
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Yes. I only tried using the for...next to switch things up. But now i see your point. However, i was using my "last" variable just to get a count of records in that table. That way i could use the "last" variable in my loop. I used item.recno() and it returned 129 i believe. And i used this to allow my loop to run from 1-129("last"). Thanks, Tom!

    -Jeb
    Last edited by jeb richardson; 08-10-2011, 09:42 AM.

    Leave a comment:


  • Tom Cone Jr
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Jeb,

    Thanks for taking a crack at it.

    The upper bound of your loop is a table record number. This number is found by fetching the last record after the table opens. However, after finding that record number you re-order the table basedon the product_id. Be advised that this could change which record is "Last". A better approach would be to order the records first, then fetch the "last" in that sort sequence. i.e. the last "product_id", not the last record number. Instead of using a For ... Next loop based on incrementing physical record numbers, I believe it's better to use a while ... end while loop based on product_id's.

    Does this make sense?

    -- tom

    Leave a comment:


  • jeb richardson
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    No, I just started working under Stan. He's teaching me all about Alpha and how we (Houchens) use it. So in a nut shell I'm learning what he does and how he does it!

    -Jeb

    Leave a comment:


  • Mike Wilson
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Jeb,
    Are you and Stan Mathews the same guy?

    Leave a comment:


  • jeb richardson
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Here's my attempt for puzzle 8.

    Puz8.txt

    Leave a comment:


  • Tom Cone Jr
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Here's my solution.

    -- tom

    Leave a comment:


  • Al Buchholz
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Originally posted by Stan Mathews View Post
    Don't laugh, Al.
    Who?? me??

    <Where's my Alfred E Neuman icon???>

    Leave a comment:


  • Stan Mathews
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Don't laugh, Al.

    Puzzle 8 kludge.txt

    Leave a comment:


  • Tom Cone Jr
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Andy, that's sweet.

    Because you're using a property array to hold the computed sums, displaying the list in sorted order becomes very easy.

    In my nested loop approach, on the contrary, I have more work to do. Will post results later on.

    -- tom

    ps. Your contribution to this exercise will be more valuable if you include comments explaining
    what your script is doing.
    Last edited by Tom Cone Jr; 06-10-2011, 12:38 PM.

    Leave a comment:


  • aschone
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    I like this manager, gonna keep me in business for a long time.
    Attached Files

    Leave a comment:


  • Lenny Forziati
    replied
    Re: Programming Puzzle 8 - Sort of a Sort

    Originally posted by Tom Cone Jr View Post
    Can you have the script done by lunch time?

    Hah! Just like a manager, right? [ Doggone managers. What do they know, anyway? ]
    Tom, a good manager would know you are an Xbasic wiz and wait patiently in your office while you whip this up in 30 seconds since it's such a simple change. Why wait until lunch time?

    Leave a comment:


  • Tom Cone Jr
    started a topic Programming Puzzle 8 - Sort of a Sort

    Programming Puzzle 8 - Sort of a Sort

    Date Created: 10-Jun-2011 10:59:01 AM
    Last Updated: 10-Jun-2011 10:59:01 AM
    Created By : Tom
    Updated By : Tom
    Beginning Xbasic Programming

    Puzzle 8 - Sort of a Sort

    You solved Puzzle_6, and then Puzzle 7, but your sales manager now tells you
    that the list of product sales shouldn't have been sorted by the product_id.
    She needs the list of sales by product sorted (descending) by the sales amount.
    She wants the product that generated the most dollars first, and the product
    that generated the fewest dollars last. She doesn't think this will
    be very difficult for you because you've already computed the total dollars
    for each product. Can you have the script done by lunch time?

    Hah! Just like a manager, right? [ Doggone managers. What do they know, anyway? ]

    Your job now is to write an xbasic script that will list each product
    and for each product show the total dollars generated by that item
    across all the invoices. But display the list in descending order based
    on total dollars generated by each item.

    Instructions:

    a) you may not use any of the built in summary functions, methods,
    or operations in Alpha Five. We're doing this one by hand.

    b) you may open the table only once

    c) your output should be directed to the trace window
Working...
X