Create/Update Timestamp of a Dataset through Rexx

[Blackthorn]

But the type 15 only shows the dataset being opened for output, it doesn't show that there was an update or not.

That doesn't seem to be the case. The type 15 is written when the dataset is closed. So, at that point, it knows whether there actually was an update or not. If there wasn't an update, even if it was opened for output, there is no type 15, only a type 14.

No.

All you know, 100% for sure, is the data set was opened to alter the data set in some way. You do not know whether the data set was actually altered.

So why is it that when I edit a dataset (ie; place an E next to it in 3.4) and then PF3 without changing anything I only get a type 14. But if I change some of the data, I get both a type 14 and a type 15?

[enrico-sorichetti]

Because ISPF knows that nothing was changed
and it will not rewrite the dataset