DP4 System error 69. Origin: Operator error
You cannot run the online backup program against
this database, as another instance of it is already running.
This message was missing from dp4.ini files for releases 4.620,4.621 and 4.622, so the message "No message text available" was displayed instead, together with spurious numeric values.A frequent cause of this problem is that a log file for a previous session of the database has not been deleted. You could attempt to recover from this error by spawning SETSESSN -DELETE. However, you would have to close the database and reopen it, and redo database access up to that point, so it is probably not worth the programming effort involved unless you trap the situation on start up: your program should perform some trivial database update when it starts so that the user is made aware of the problem before he has done any useful work.