Alpha Software Mobile Development Tools:   Alpha Anywhere    |   Alpha TransForm subscribe to our YouTube Channel  Follow Us on LinkedIn  Follow Us on Twitter  Follow Us on Facebook
Devcon 2020 Goes Virtual! LEARN MORE >

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

Is RECORD_UPDATE Efficient?

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    Is RECORD_UPDATE Efficient?

    Does RECORD_UPDATE scan the entire file to find the record to be updated... or does it/will it optimize the "find" portion in some way? Is there any way to "help" it find the most efficient way to perform it's job?

    Thanks,
    "all things should be as simple as possible... but no simpler"

    Mike
    Tags: None
    #2
    Re: Is RECORD_UPDATE Efficient?

    Originally posted by michaelwpayton View Post
    Does RECORD_UPDATE scan the entire file to find the record to be updated... or does it/will it optimize the "find" portion in some way? Is there any way to "help" it find the most efficient way to perform it's job?
    Mike,

    From the CHM:
    RECORD_UPDATE() modifies a record in table Table_Name. The record is selected using Record_Filter and updated with the field values specified by Data_List.
    I've never used this function, but apparently it performs a query based upon the filter that you provide.
    Peter
    AlphaBase Solutions, LLC

     [email protected]
    https://www.alphabasesolutions.com

    Comment

      #3
      Re: Is RECORD_UPDATE Efficient?

      So I guess the question should perhaps ask if the query used by the function can utilize LQO to speed it up....if not then use the lower level functions in order to try to use LQO if speed is an issue.
      Mike
      __________________________________________
      It is only when we forget all our learning that we begin to know.
      It's not what you look at that matters, it's what you see.
      Henry David Thoreau
      __________________________________________



      Comment

        #4
        Re: Is RECORD_UPDATE Efficient?

        Thanks guys... In general, is there a way to know what really goes on within some of Alpha's "higher level" functions, like RECORD_UPDATE. Some tools, we have worked with in the past, provide a way to "see" what/how, exactly, a given task with be approached.
        "all things should be as simple as possible... but no simpler"

        Mike

        Comment

          #5
          Re: Is RECORD_UPDATE Efficient?

          Originally posted by michaelwpayton View Post
          In general, is there a way to know what really goes on within some of Alpha's "higher level" functions, like RECORD_UPDATE.
          I'm sure a few people at Alpha know, but I doubt that they will come forward. Ira Perlow is your best bet. Send him a message.
          Peter
          AlphaBase Solutions, LLC

           [email protected]
          https://www.alphabasesolutions.com

          Comment

            #6
            Re: Is RECORD_UPDATE Efficient?

            Hi Mike,

            Record_update() filter expression will invoke LQO of an index if properly specified.

            However, it basically adds or updates a record, 1 record at a time, in a relatively slow loop.

            Appends/Updates would be faster if you have sole access (except possibly due to index rebuilds), but if the table is shared with another session, it may be just as slow as record_update(), but I suspect it would still be faster than looping.
            Regards,

            Ira J. Perlow
            Computer Systems Design


            CSDA A5 Products
            New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
            CSDA Barcode Functions
            CSDA Code Utility
            CSDA Screen Capture

            Comment

              #7
              Re: Is RECORD_UPDATE Efficient?

              Thanks Ira.
              "all things should be as simple as possible... but no simpler"

              Mike

              Comment

                #8
                Re: Is RECORD_UPDATE Efficient?

                Originally posted by michaelwpayton View Post
                Is there any way to "help" it find the most efficient way to perform it's job?
                Mike, take a look too at the method <TBL>.UPDATE(). This uses the Alpha5 Xbasic standard query processing and lightning query optimisation LQO (provided it is appropriately structured - see the Alpha help documentation for further details). In a million record table its possible to complete a simple update in about 1 second, or even less, using this approach.

                Comment

                  #9
                  Re: Is RECORD_UPDATE Efficient?

                  Thanks Brett... I'll check it out.
                  "all things should be as simple as possible... but no simpler"

                  Mike

                  Comment

                  Previous template Next
                  Working...
                  X