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  2. DBMS_RESOURCE_MANAGER_PRIVS

137 DBMS_RESOURCE_MANAGER_PRIVS

The DBMS_RESOURCE_MANAGER_PRIVS package maintains privileges associated with the Resource Manager.

This chapter contains the following topics:

See Also:

For more information on using the Database Resource Manager, seeOracle Database Administrator’s Guide

137.1 Summary of DBMS_RESOURCE_MANAGER_PRIVS Subprograms

This table lists the DBMS_RESOURCE_MANAGER_PRIVS subprograms and briefly describes them.

Table 137-1 DBMS_RESOURCE_MANAGER_PRIVS Package Subprograms

Subprogram Description

GRANT_SWITCH_CONSUMER_GROUP Procedure

Grants the privilege to switch to resource consumer groups

GRANT_SYSTEM_PRIVILEGE Procedure

Performs a grant of a system privilege

REVOKE_SWITCH_CONSUMER_GROUP Procedure

Revokes the privilege to switch to resource consumer groups.

REVOKE_SYSTEM_PRIVILEGE Procedure

Performs a revoke of a system privilege

137.1.1 GRANT_SWITCH_CONSUMER_GROUP Procedure

This procedure grants the privilege to switch to a resource consumer group.

Syntax

DBMS_RESOURCE_MANAGER_PRIVS.GRANT_SWITCH_CONSUMER_GROUP (
   grantee_name   IN VARCHAR2, 
   consumer_group IN VARCHAR2, 
   grant_option   IN BOOLEAN);

Parameters

Table 137-2 GRANT_SWITCH_CONSUMER_GROUP Procedure Parameters

Parameter Description

grantee_name

Name of the user or role to whom privilege is to be granted.

consumer_group

Name of consumer group.

grant_option

TRUE if grantee should be allowed to grant access, FALSE otherwise.

Usage Notes

If you grant permission to switch to a particular consumer group to a user, then that user can immediately switch their current consumer group to the new consumer group.

If you grant permission to switch to a particular consumer group to a role, then any users who have been granted that role and have enabled that role can immediately switch their current consumer group to the new consumer group.

If you grant permission to switch to a particular consumer group to PUBLIC, then any user can switch to that consumer group.

If the grant_option parameter is TRUE, then users granted switch privilege for the consumer group may also grant switch privileges for that consumer group to others.

In order to set the initial consumer group of a user, you must grant the switch privilege for that group to the user.

See Also:

DBMS_RESOURCE_MANAGER

Examples

BEGIN 
DBMS_RESOURCE_MANAGER_PRIVS.GRANT_SWITCH_CONSUMER_GROUP ( 
 'scott', 'mail_maintenance_group', true); 
DBMS_RESOURCE_MANAGER.CREATE_PENDING_AREA(); 
DBMS_RESOURCE_MANAGER.set_consumer_group_mapping( 
  dbms_resource_manager.oracle_user, 'scott','mail_maintenance_group'); 
DBMS_RESOURCE_MANAGER.SUBMIT_PENDING_AREA(); 
END; 
/

137.1.2 GRANT_SYSTEM_PRIVILEGE Procedure

This procedure performs a grant of a system privilege to a user or role.

Syntax

DBMS_RESOURCE_MANAGER_PRIVS.GRANT_SYSTEM_PRIVILEGE (
   grantee_name    IN VARCHAR2, 
   privilege_name  IN VARCHAR2 DEFAULT 'ADMINISTER_RESOURCE_MANAGER',             
   admin_option    IN BOOLEAN);

Parameters

Table 137-3 GRANT_SYSTEM_PRIVILEGE Procedure Parameters

Parameter Description

grantee_name

Name of the user or role to whom privilege is to be granted.

privilege_name

Name of the privilege to be granted.

admin_option

TRUE if the grant is with admin_option, FALSE otherwise.

Usage Notes

Currently, Oracle provides only one system privilege for the Resource Manager: ADMINISTER_RESOURCE_MANAGER. Database administrators have this system privilege with the ADMIN option. The grantee and the revokee can either be a user or a role. Users that have been granted the system privilege with the ADMIN option can also grant this privilege to others.

Examples

The following call grants this privilege to a user called scott without the ADMIN option: 

BEGIN
DBMS_RESOURCE_MANAGER_PRIVS.GRANT_SYSTEM_PRIVILEGE (
 grantee_name => 'scott',
 privilege_name => 'ADMINISTER_RESOURCE_MANAGER',
 admin_option => FALSE);
END;
/

137.1.3 REVOKE_SWITCH_CONSUMER_GROUP Procedure

This procedure revokes the privilege to switch to a resource consumer group.

Syntax

DBMS_RESOURCE_MANAGER_PRIVS.REVOKE_SWITCH_CONSUMER_GROUP (
   revokee_name   IN VARCHAR2, 
   consumer_group IN VARCHAR2);

Parameters

Table 137-4 REVOKE_SWITCH_CONSUMER_GROUP Procedure Parameter

Parameter Description

revokee_name

Name of user/role from which to revoke access.

consumer_group

Name of consumer group.

Usage Notes

If you revoke a user's switch privilege for a particular consumer group, then any subsequent attempts by that user to switch to that consumer group will fail.

If you revoke the initial consumer group from a user, then that user will automatically be part of the DEFAULT_CONSUMER_GROUP consumer group when logging in.

If you revoke the switch privilege for a consumer group from a role, then any users who only had switch privilege for the consumer group through that role will not be able to switch to that consumer group.

If you revoke the switch privilege for a consumer group from PUBLIC, then any users who could previously only use the consumer group through PUBLIC will not be able to switch to that consumer group.

Examples

The following example revokes the privileges to switch to mail_maintenance_group from Scott: 

BEGIN
DBMS_RESOURCE_MANAGER_PRIVS.REVOKE_SWITCH_CONSUMER_GROUP (
 'scott', 'mail_maintenance_group');
END;
/

137.1.4 REVOKE_SYSTEM_PRIVILEGE Procedure

This procedure performs a revoke of a system privilege from a user or role.

Syntax

DBMS_RESOURCE_MANAGER_PRIVS.REVOKE_SYSTEM_PRIVILEGE (
   revokee_name   IN VARCHAR2, 
   privilege_name IN VARCHAR2 DEFAULT 'ADMINISTER_RESOURCE_MANAGER');

Parameters

Table 137-5 REVOKE_SYSTEM_PRIVILEGE Procedure Parameters

Parameter Description

revokee_name

Name of the user or role from whom privilege is to be revoked.

privilege_name

Name of the privilege to be revoked.

Examples

The following call revokes the ADMINISTER_RESOURCE_MANAGER from user scott: 

BEGIN
DBMS_RESOURCE_MANAGER_PRIVS.REVOKE_SYSTEM_PRIVILEGE ('scott');
END;
/