Modifying values in master..sysprocesses [Sybase] - sybase

Question

Is there a way to modify the column program_name in table master..sysprocesses?
I have found two methods, but both set the name during the creation of the connection:
Using parameter appname when executing an isql command
Adding parameter APP= in a connection string when opening an ODBC connection.
I am looking for a way to modify it AFTER it has been created.
I tried the following example:
sp_configure "allow updates",1
go
UPDATE master..sysprocesses
SET program_name = 'test'
where hostname = 'server'
and hostprocess = '23240'
go
sp_configure "allow updates",0
go
But failed:
Could not execute statement.
Table 'sysprocesses' can't be modified.
Sybase error code=270
Severity Level=16, State=1, Transaction State=0
Line 4
You can continue executing or stop.

Answer 1

Changes to column sysprocesses.program_name are not allowed after its been created. But there are three columns in sysprocesses which can be changed after creation of the connection
sysprocesses.clientname
sysprocesses.clientapplname
sysprocesses.clienthostname
Exerpt from the Sybase Infocenter website:
Changing user session information
The set command includes options
that allow you to assign each client an individual name, host name,
and application name. This is useful for differentiating among clients
in a system where many clients connect to Adaptive Server using the
same name, host name, or application name.
The partial syntax for the set command is:
set [clientname client_name | clienthostname host_name | clientapplname application_name]
where:
client_name – is the name you are assigning the client.
host_name – is the name of the host from which the client is
connecting.
application_name – is the application that is connecting to Adaptive
Server.
These parameters are stored in the clientname, clienthostname, and
clientapplname columns of the sysprocesses table.
For example, if a user logs in to Adaptive Server as "client1", you
can assign them an individual client name, host name, and application
name using commands similar to:
set clientname 'alison'
set clienthostname 'money1'
set clientapplname 'webserver2'
.
.
.
Use the client’s system process ID to view their connection
information. For example, if the user “alison” described above
connects with a spid of 13, issue the following command to view all
the connection information for this user:
select * from sysprocesses where spid = 13
To view the connection information for the current client connection (for example, if the user “alison” wanted to view her own connection information), enter:
select * from sysprocesses where spid = ##spid