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slow on first use each day

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  • slow on first use each day

    my apps seem to be very slow on first use. once a user has used a part of the application it speeds up greatly the next time th euser uses that particular feature.

    this was the same in v8 although using v9 now. using shadowed accross a network. server is pretty fast.

    i personally use a development app, direct to the program and i have none of these issues.

    all otherprograms used which are on the same server have none of these issues.

    any suggestions as to why this is so slow on first use after the pc is started.

  • #2
    Re: slow on first use each day

    Do you use a lot of queries or do you use indexes. Sounds like queries that are being reused. The initial query of the day would take more time than calling that query again.
    There can be only one.

    Comment


    • #3
      Re: slow on first use each day

      hi stan,

      im afaraid this is where im not too sure. would a query be a filter i have set up either in form properties or an action script of a button.

      if it is, then most of the the buttons to navigate around the system have a filter or the form has a filter set in its properties.

      i dont really know too much about indexes. whilst building i always set the primary key field as an index as i felt this is where the database would search and sort records. i had a look at some of the table indexes and some tables have more than 1 index. these seem to have appeared when creating sets.

      i have tried a few times to read more on indexes in the help file, but i couldnt really find a tutorial on the do's and dont's of indexing...

      the program is set up where we in th emost work on one record at a time and there are a lot of tables related to each record.

      any general advice on indexes, where to learn about indexes etc would be helpful.

      thanks

      richard

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      • #4
        Re: slow on first use each day

        a filter i have set up either in form properties or an action script of a button.
        These filters should make use of indexes whenever possible. If you have a filter that depends on a date range, the date field should be indexed. If the user opens a form and the form is filtered on a customer name choice made somewhere, the customer name field should be indexed.
        There can be only one.

        Comment


        • #5
          Re: slow on first use each day

          ok, that helps. is there a guidance as to the number of indexes, ie will too many cause the databse to slow?

          thanks again stan, really appreciate the help.

          Comment


          • #6
            Re: slow on first use each day

            thanks for all the help, i split my forms into smaller forms and split the sets for these new forms added indexes to search fields and the time savings are huge. now i have some happy users and a very speedy system.

            Comment


            • #7
              Re: slow on first use each day

              Richard, your post reminds me of Dr. Wayne's article "Simplify Your Application for Better Performance", available at www.learn alpha.com. Don't know if you've seen it or not but thought I would mention it here for others' benefit. -- tom

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