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Bonus TIPS for Successful Posting

Try a Search First
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Performance problem on WEB GRID

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  • Performance problem on WEB GRID

    Dear all,

    I've tried to connect an external DB2 table using ODBC connector.
    Table has about 400.000 records and 20 columns. Nothing particular or strange. Really an easy people master data table.

    I developped a flat web grid and then I started to try on search field and so on. It was not a rocket but after a while I got anwers.
    Just to test performance I've tried to use "Last" record function and here my great surprise.
    A5 wait a lot of time and then I think it went on idle and blocked. Stopped.

    Is there someone who works on heavy DB and wich is the trick to use them with A5 ?

    Many thanks
    Giovanni

  • #2
    Re: Performance problem on WEB GRID

    I am not familiar with IBM DB, but I do use Oracle. Working on a new web prototype I have connected to local Oracle XE on my PC and also to company live oracle 10 G databases.
    Generally I found the performance was better than with DBF files. I have a table in current project which has more than 160,000 records. Takes about 16 seconds to load the last page on the grid. This is an import of the Oracle DB on my local system in Oracle XE. Actually the 16 seconds is faster than the original Oracle forms application. And I did use a lot of dropdowns to display data from other tables. This will slow down performance I understand.... Also I defined a sortorder on invoice date desc, which is not an index on the table...

    Did you define a primary key in Alpha? Does the database has an index on the same field in the DB?
    So many parameters can influence performance, it is very hard to pinpoint the cause of your particular problem. You will have to play around with some settings on the IBM DB and Alpha side. see pic. regards, Ron

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