For the database, the SAP system is a single user, SAPR3
/
SAP<SAPSID>
, whose password is stored in the table SAPUSER
. Therefore, to access the database, the SAP System
uses a mechanism called the OPS$ mechanism, which works as follows:
When the system accesses the database, it first logs on to the database as the user OPS$<operating_system_user>
, for example, OPS$<SAPSID>adm
.
(The OPS$ user that corresponds to the operating
system user must be defined in the database and identified as externally
.
It retrieves the password for SAPR3
from the SAPUSER
table.
It logs on to the database as the user SAPR3
.