QV 11 / Start a reload task only if/ after source table is updated

[bvmike2001]

Hello,

please help me to understand what to do and how to configure task in QMC in order to start a reload task for a QVD only if/ after the source table was updated with new record.

Consider that i can use a log table from witch i can read the timestamp of the last success table update.

Do i need to build a designated qvw file in order to capture that event and after...?

Thanks!

[marcus_sommer]

Within the qmc by the reload-trigger options from the app you could start a reload in dependence from another successful reload-task. But this meant not necessary that a particular qvd has new records. If this is needed you could write a small if-statement in the beginning from a load-statement to check this:

if filesize(qvd) > $(vFilesize) then // there are many more functions like this available

     let vFilesize = filesize(qvd);

else

     exit script;

end if

- Marcus

[bvmike2001]

Hello Marcus,

many thanks for your reply.

My plan is to update the QVD only if the source table is updated and after the QVD update task is finished i will reload the app through task success dependency.

So my question is how to do this?

I have to build a new app that has a continuous reload a test if the source table is updated and base o this to reload the QVD with dependency?

[ashfaq_haseeb · Accepted solution]

Hi,

Below discussions will help you.

http://community.qlik.com/message/553748#553748

http://community.qlik.com/message/494538#494538

You need to create and EDX trigger.

Regards

ASHFAQ

[bvmike2001]

Many thanks, ASHFAQ!

I will study your EDX trigger solution.

[ashfaq_haseeb]

If it answer,

Close the thread after all your study.

Regards

ASHFAQ