Terry,

You can use non-destructive reads by specifying the COPY option on a file equation as in:

FILE MSGFILE;COPY
FCOPY FROM=*MSGFILE;TO=NEWFILE

There's also an FOPEN Aoptions (bit 3:1) to enable the option.

As for editing a message file, the only safe way I know is to extract all the records into a regular flat file, edit it and load it back into the message file.

HTH
Thanks...François

-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Simpkins, Terry
Sent: Wednesday, March 09, 2011 12:29 PM
To: [log in to unmask]
Subject: [HP3000-L] Message file question

We use NETBASE to shadow our Production databases to a 'backup' HP3000.
We also use Bridgeware from Taurus to 'shadow' the data to SQL versions
of the IMAGE database onto a Windows machine.  NETBASE uses message
files to transmit the IMAGE database changes to Taurus who then performs
the SQL changes (puts, changes & deletes).  From time to time, I need to
'manipulate' the message file records going to Taurus.  Specifically I
need to find and delete certain records in the message.  These records
could (certainly are) intermixed throughout the message file.  

 

My question is what tools can I use to 'edit' a message file without
destroying the file?  

I learned today (the hard way) that using FCOPY to copy from a message
file, destroys the records read from the message file.  Can you "COPY" a
message file without destroying the records that are copied?

 

Terry W. Simpkins

Director Business Systems

Measurement Specialties, Inc.

office:  +1 757-766-4278

mobile:  +1 757 532-5685

[log in to unmask] <mailto:[log in to unmask]> 

www.meas-spec.com <http://www.meas-spec.com> 

 


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