The Meaning of the Abbreviation ‘SID’

The functions used by a permission editor should always be called with the Policy object for the system where the name or security identifier (SID) is located. Windows Access Control also offers functions that can translate between SIDs and account names, such as LookupAccountName and LookupAccountSid.


Solution:

The database serves as a storage platform for the data of user applications.

Indeed, the collection consists of various files (such as the datafile, controlfile, redo log, tempfile, and block change tracking file) that are stored on the disk.

The server instance is currently running ORACLE processes that include SGA.

Indeed, an instance comprises both processes and SGA.

Normally, a database is associated with a single instance, whereas a RAC database has the ability to support multiple instances across multiple nodes.

The database, referred to as

db_name

, is stored in both database files and pfile/spfile.

The instance is identified by its name, which can be modified through the

instance_name

parameter. This name is not stored in the database files but rather in the pfile/spfile. It is important to note that the instance name is not strictly unique, as multiple instances with the same name can exist on the same server, but running from different Oracle Homes.

When not specified,

SID (instance_name)

is set to

db_name

.

When dealing with a cluster database, the default value for

SID (instance_name)

is

db_name + instance_number

.

In addition to the information mentioned earlier, the value of

SID (instance_name)

can be customized by modifying

instance_name

.

Frequently Asked Questions