![]() Oracle Security Overview for an overview of database security Please specify the proxy_clause either with or without the AUTHENTICATION REQUIRED clause. It has been deprecated and is ignored if you use it in your code. The credential is a password.ĪUTHENTICATED USING This clause is no longer needed. If you do not specify any of these WITH clauses, then Oracle Database activates all roles granted to the specified user automatically.ĪUTHENTICATION REQUIRED Clause Specify AUTHENTICATION REQUIRED to ensure that authentication credentials for the user must be presented when the user is authenticated through the specified proxy. WITH NO ROLES WITH NO ROLES permits the proxy to connect as the specified user, but prohibits the proxy from activating any of that user's roles after connecting. WITH ROLE ALL EXCEPT WITH ROLE ALL EXCEPT role_name permits the proxy to connect as the specified user and to activate all roles associated with that user except those specified for role_name. WITH ROLE WITH ROLE role_name permits the proxy to connect as the specified user and to activate only the roles that are specified by role_name. Oracle Database expects the proxy to authenticate the user unless you specify the AUTHENTICATED USING clause. Identify the proxy connecting to Oracle Database. Specify REVOKE to prohibit the connection. ![]() ![]() See Also: Oracle Database Concepts for more information on proxies and their use of the database and "Proxy Users: Examples" Restriction on User Temporary Tablespace Any individual tablespace you assign or reassign as the user's temporary tablespace must be a temporary tablespace and must have a standard block size. Specify tablespace_group_name to indicate that the user can save temporary segments in any tablespace in the tablespace group specified by tablespace_group_name. Specify tablespace to indicate the user's temporary tablespace. Use this clause to assign or reassign a tablespace or tablespace group for the user's temporary segments. Restriction on Default Tablespaces You cannot specify a locally managed temporary tablespace, including an undo tablespace, or a dictionary-managed temporary tablespace, as a user's default tablespace. This clause overrides any default tablespace that has been specified for the database. Use this clause to assign or reassign a tablespace for the user's permanent segments. See Also: Oracle Database Identity Management Integration Guide for more information on globally and externally identified users, "Changing User Identification: Example", and "Changing User Authentication: Examples" For more information, see Oracle Call Interface Programmer's Guide. If such a check is important in other cases (for example, when a privileged user changes another user's password), then ensure that the password complexity verification function prohibits password changes in which the old password is null, or use the OCIPasswordChange() call instead of ALTER USER. Oracle Database does not check the old password, even if you provide it in the REPLACE clause, unless you are changing your own existing password. However, unless you have the ALTER USER system privilege, you must always specify the REPLACE clause if a password complexity verification function has been enabled, either by running the UTLPWDMG.SQL script or by specifying such a function in the PASSWORD_VERIFY_FUNCTION parameter of a profile that has been assigned to the user. You can omit the REPLACE clause if you are setting your own password for the first time or you have the ALTER USER system privilege and you are changing another user's password. For this reason, Oracle recommends that you avoid using scripts to reset passwords. If you reset one password multiple times within one second (for example, by cycling through a set of passwords using a script), then the database may return an error message that the password cannot be reused. ![]() Oracle Database expects a different timestamp for each resetting of a particular password.
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