Mainframe, MVS and zOS Discussion

Hi,

In SDSF what is the difference between purge and cancel. Both seems to behave similar..

Thanks Dick.

I think it's like as UNIX is written in C and has it's own advantages; similarly DB2 has over VSAM...

Thanks Pandora and Robert.

Thanks Pandora, this give a more info: Basically, a file management system is that component of the overall system that manages stored files. Loosely speaking, therefore, it is "closer to the disk" than the DBMS is. In fact, the DBMS is typically built on top of some kind of file manager. ...

Is not it a symbolic name? I was searching for the documentation to din it but in vain.

I'll search again and if could find a document will let you know, in case if you have it with you..please share.

I'm thinking that - will mainframe give me enough opprotunities in future, for my livlihood?

Ok as I type this, this thread I started has 39687 replies on another forum (that is 2835 pages). So I'm just seeing what its like here. People just talk a load of crap in it.

Well I'm heading out now so I hope it will be a good evening! Anyone else up to anything?

Hi, This might sound stupid to ask as it might be considered as rules of the language but why the level numbers are from 1 to 49 and next level numbers are 66,77,88? Are the labels 50 to 65, 67 to 76 and 78 to 87 are left for future purpose or was there some restriction? Do we have some documents av...

Hi,

DB2 is usually referred "as a good alternative to replace" VSAMs - but Db2 itslef uses LDS aas the underlying VSAM -- then why it is a better alternative? It may be dumb to ask but then can't all the functionality of DB2 be implemented in VSAMs itself one way or other?

Hi,

In the following SQL
In above what will the "A" be? Should it be a VIEW, ALIAS or something else.