Reload should fail if QVD size is zero

[mohan2391]

Hi,

I have a requirement where the reload of QVW should stop when the size of QVD which I am loading in the QVW is zero.

How to achieve this ?

Thanks in advance

[Peter_Cammaert · Accepted solution]

If you want a task furter up in the QMC chain to not run when a QVD is found to be empty, let your script crash if you detect no loaded rows. I often use a self-invented statement called CRASH; to do this , because QlikView doesn't supply something similar. Your script then becomes

TableSomething:
LOAD * FROM SomeFile (SomeOptions);

IF NoOfRows('TableSomething') = 0 THEN
  CRASH;
END IF

Of course, the task will fail and you will get an appropriate email scream from the QDS. But the second task will not run.

[shiveshsingh]

Crash 😛

Nice one

[Peter_Cammaert]

Well, for one thing

:
ABORT;
:

works equally well, and is a bit less dramatic 

[qlikwiz123]

If two QVW reloads are dependent, then QVW2 runs after 'Successful' execution of QVW1 in QMC. If QVW1 fails, then QVW2 would never reload at all. Isn't this the case in your tasks set in QMC?

[qlikwiz123]

If two QVW reloads are dependent, then QVW2 runs after 'Successful' execution of QVW1 in QMC. If QVW1 fails, then QVW2 would never reload at all. Isn't this the case in your tasks set in QMC?

[mohan2391]

Yes, it works in that manner only.
But in my case QVW1 was not failing, right..

So I have made that answer as correct.. That script looks for size of the qvd 1st, if it is zero it will fail because of writing CRASH/ABORT.. if it is not zero, normal execution will happen..

[shiveshsingh]

Please close the thread

[mohan2391]

How ?