Is it right to use the "sound file write simple.vi"?

I had a problem to use the Sound File Write Simple.vi that is it can not save the data.
The links are shown in the following picture.
I wonder is it right for me to use that vi like that shown in the picture?
And why I can not save file as *.wav while I can save it as a *.txt?
Thank you!
Attachments:
Image00003.jpg ‏77 KB

No command lines do not work inside stored procedures.
Firstly, remember that the stored procedure is running on the database server so any files it can access have to be on the server itself.
ZIP is an operating system command, so you would have to have some java code or some other means of shelling out to the operating system to execute it, an area which I'm not to familiar with doing myself as I've never found a need to.
Have you looked at Oracles own UTL_COMPRESS package?

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