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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:
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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.

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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.

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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.
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UUID

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  • CharlesParker
    replied
    Re: UUID

    what was wrong with AI ? Perhaps you could consider using AI and filtering by the UUID, I read that using UUID can be 200 times more costly in terms of speed.
    http://www.percona.com/blog/2007/03/...r-not-to-uuid/

    I really do not know your situation so please just take my suggestion with a grain of salt only you know what will work best for your needs BUT keep in mind that some knuckle-head may have be to go behind you to figure out what the heck you were doing! I like the idea of NO triggers and keep it as simple as possible with as little duplication as possible.

    Leave a comment:


  • davidhs
    replied
    Re: UUID

    Hi Jack,

    I'm using UUID in my mySQL DB. I started out with DBF, but changed within weeks to mysql. Almost all of my tables use UUID for PK. The fields are set to varchar(40), as you also write. I dont' trim the dashes.
    I don't use triggers, since I create the uuid in AA using the api_uuidcreate() function. In my application, I sometimes need to know the uuid before I store the value, because I might be inserting in another table that is linked to the PK just created. I also have some xbasic functions writen to copy data in my tables, and here I also change the uuid in AA, because I again need to treat all the data linking to each other to make sure it's working correctly.

    Leave a comment:


  • BCJack
    started a topic UUID

    UUID

    I recently saw in a video where someone made his SQL table Primary Keys UUID. Up until now, I never gave an auto-increment Int(10) field any second guesses. After doing some more research, it sounds like there will be some issues if multiple users try to submit new records to the same table at the same time. I then noticed that Alpha Anywhere has a field type for GUID. If I was to use this, how would I need to configure the MySQL table fields for the primary key? Varchar(40)? Would I need to write a trigger on the table to trim any dashes?
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