![]() Specify the total elapsed time limit for a session, expressed in minutes. ![]() Specify the CPU time limit for a call (a parse, execute, or fetch), expressed in hundredths of seconds. Specify the CPU time limit for a session, expressed in hundredth of seconds. ![]() Specify the number of concurrent sessions to which you want to limit the user. If a user attempts to perform an operation that exceeds the limit for a single call, then the database aborts the operation, rolls back the current statement, and returns an error, leaving the current transaction intact. The user can then commit or roll back the current transaction, and must then end the session. If a user attempts to perform an operation that exceeds the limit for other session resources, then the database aborts the operation, rolls back the current statement, and immediately returns an error. When the user process next issues a call, the database returns an error. If a user exceeds the CONNECT_TIME or IDLE_TIME session resource limit, then the database rolls back the current transaction and ends the session. Oracle Database enforces resource limits in the following ways: Oracle recommends against using an empty string value because it might result in conflicts between the names of local and common profiles when a PDB is plugged into a different CDB, or when opening a PDB that was closed when a common user was created. If the value of COMMON_USER_PREFIX is an empty string, then there are no requirements for common or local profile names with one exception: the name of a local profile can never begin with C# or c#. For example, if the profile local_prof that is assigned to user c#admin in a PDB has SESSIONS_PER_USER set to 2, then c#admin is only allowed only 2 concurrent sessions when he or she logs in to the PDB loc_prof is assigned to him, regardless of value of this setting in a profile assigned to him in the root. Resource-related profile settings specified in the profile assigned to a user in a PDB get used without consulting resource-related settings in a profile assigned to the common user in the root. In a PDB that user is assigned a local profile local_prof (in which FAILED_LOGIN_ATTEMPTS is set to 6.) Common user c#admin is allowed only one failed login attempt when he or she tries to log in to the PDB where loc_prof is assigned to him. For example, suppose you assign a common profile c#prof (in which FAILED_LOGIN_ATTEMPTS is set to 1) to common user c#admin in the root. ![]() Password-related profile settings are fetched from the profile that is assigned to the common user in the root. When the common user logs in to the PDB, a profile whose setting applies to the session depends on whether the settings are password-related or resource-related. In a multitenant environment, different profiles can be assigned to a common user in the root and in a PDB. Password resources are always enabled.Ĭreate a profile that defines the limits using the CREATE PROFILE statementĪssign the profile to the user using the CREATE USER or ALTER USER statement This parameter does not apply to password resources. To specify resource limits for a user, you must:Įnable resource limits dynamically with the ALTER SYSTEM statement or with the initialization parameter RESOURCE_LIMIT. If you assign the profile to a user, then that user cannot exceed these limits. Use the CREATE PROFILE statement to create a profile, which is a set of limits on database resources.
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