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Performance shared (virtual) tables

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Posted on by Rudie

35

I have a form with a grid on it. At first I used a cross company AOT query to retrieve data from 5 different datasources, joined to a root table.
This was not performing at al because of authorization matters and the quantity of the data.
My idea was to make the "root" table virtual and place this table in a form as datasource along with the non-virtual datasources I need.

In the executeQuery method of the shared (virtual) table i want to join the other datasources.

Is there a best practice approach for this, or is my thought wrong?

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Rudie 35 on at

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RE: Performance shared (virtual) tables

Hi Domimic,

Thanks for your quick repsonse. I have tried different scenario's and I think you are correct.

At a certain point you have to switch companies to retrieve the data needed.

I'll try to tune the SQL query.

Kind regards,

Rudie Heijnen
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dolee 11,279 on at

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RE: Performance shared (virtual) tables

Hi Rudie,

I believe you still need to use cross company query regardless whether the "root" table is shared or not. Unfortunately I don't have access to an AX2009 to verify at the spot.

For the performance issue, you should check the generated SQL query and see if there's room for tuning. (e.g. suggested missing index by SQL engine)

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