Mainframe, MVS and zOS Discussion

I've a file which can be updated from tow different job. It does not matter which job runs first and I am thinking what is the best way of doing it.

I think, you should try changing the DD names, you've them all numeric.

William Collins wrote:I agree with enrico. Didn't notice it missing til now, but once people asking questions have more that a few posts, it is very useful to be able to see what they have asked before, and how they respond to follow-ups.

So if I could not follow up on a particular topic I'll be penalized for others too?

Thanks Robert. This is useful information.

So if we've a partial key and it does not start from left most byte, we would use AIX, is this a correct learning?

Hi,

How DISP=SHR is differnet than DISP=OLD, in case of updating a sequential file? What will happen in case of concurrent update, by multiple users, for the same sequential file, while that DISP=SHR, will the data be corrupted?

Thanks Robert. I'm might sound badly wrong but for partial key is there some restriction of knowing "left" or "right" part of the key? I'm trying to search on it and I think I got the idea from a discussion with friend but I've confused so badly that my google searches did not re...

Hi,

For one of the requirements I'm supposed to read a VSAM file with a partial key only. Can you please give me some pointers about this as I'm not sure if can do this.

Thanks and Regards,