Message files are used to send data from one program to another at real
time.  They can be built by adding the ";MSG" at the end of BUILD command.

As to the question of editing a message file, you have to be very careful.
In most cases, when you read a message file, the data is destroyed as you
read the file.  If you really need to edit the contents of a message file,
build a temp file and fcopy the records from the message file to the temp
file.  Edit the temp file and fcopy the temp file records back to the
message file.

Now to put records into a message file, from a flat file.  Build the message
file to match the file specs of the flat file.  Then fcopy from flat file
records to the message file.  Remember to setup a file equation for that you
are appending to the message file.

Good luck!!!
Ron Horner
HP3000 Systems Administrator
JCPenney Logistics
[log in to unmask]
(414) 259-2274
AIM: hornerrr
----- Original Message -----
From: "Aravind Kumar Lakkavajhula" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, March 18, 2002 10:06 AM
Subject: Infrormation reg Message Files


> Hi all,
>   I am newbie to the concept of Message files on MPE
> and i require more information on that. While i am
> trying to look for more information on the web it
> would of great help if somebody here can provide me
> with some pointers on that. The following are the
> areas i seek info on
>
> 1)How to create a message file?
> 2) How to edit a message file?[When no process is
> accessing it] i.e. remove a few records from the
> message file and make it ready for processes to access
> it.
> 3)How to create a new message file from a flat file of
> records.The records from the flat file have to be used
> to make a new/ add to an existing msg file.?
>
>
> Thanks
> Kumar
>
>
>
>
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