For video on demand databases are too slow.
You would use a streaming server, for which I don't know any available for 
System z OS except VM Stairs.
In addition, a streaming server would serve a stream, so you need a small 
buffer (e.g. 128MB) and fast DASD for 1000 Users.

For the 64Bit discussion, as long as LE cannot mix 64Bit and 31Bit modules, 
what is the benefit?


 

-----Original Message-----
From: Schneiderwent, Craig - DOT <[email protected]>
To: [email protected]
Sent: Fri, 9 Jan 2009 3:36 pm
Subject: Re: AIX gets 64 bit COBOL but still none for Z/os ...










 > Is there any reason to have 64-bit COBOL on z/OS ?

Parsing or generating _really_ _big_ XML data streams?

In a CICS Web Services provider scenario, one could posit a very large 01 
level, 
only some of which gets filled in for any one request...

 01  Work-Areas.
     05  Some-Table-Nb                PIC 9(008) COMP-5.
     05  Some-Other-Table-Nb          PIC 9(008) COMP-5.
     05  Marks-Nb                     PIC 9(008) COMP-5.

 01  Response.
     05  Personal-Info.
         10  Given-Name               PIC N(80) USAGE NATIONAL.
         10  Family-Name              PIC N(80) USAGE NATIONAL.
     05  Some-Table Occurs 0 To 200 Depending Some-Table-Nb.
         10  Photo-Base-64-JPEG       PIC X(20480).
         10  Fingerprint-base-64-JPEG PIC X(40960).
         10  Scars-Marks-Tattoos Occurs 0 To 100 Depending Marks-Nb PIC 
X(20480).
     05  Some-Other-Table Occurs 0 To 10 Depending Some-Other-Table-Nb.
         10  MPEG4-encoded-somehow    PIC X(1024000).
     05  [more big-ish data here]


But I'm just making this up, AFAIK we don't have anything like this.

One could also posit a video rental business that keeps the videos in DB2 BLOBs 
and serves them via CICS Web Services COBOL applications.  But I don't know of 
any such business.

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