Locking the whole SAP system

Using the command tp locksys «SysID» only the user SAP* will be allowed to login. The command tp unlocksys «SysID» cancels the lock.

Connection between SAP R/3 and operating system
The command sapevt can be used to trigger an event from the operation system. Thus, a job previously defined within R/3 will be released.

SQL code help
Run the command oerr ora «error number» under user ora«SysID».

Oracle import and export explanations
Run the command imp help=yes under user ora«SysID». This format can also be used with exp, impst, and expst.