Example 2-1 Creating a Shared Schema

SQL> CREATE USER global_ident_schema_user IDENTIFIED GLOBALLY;
User created.
SQL> GRANT CONNECT TO global_ident_schema_user;
Grant succeeded.

Example 2-2 Mapping Enterprise Users to the Shared Schema

To create the user-schema mapping:

1. Log in to Enterprise Manager Cloud Control, as an administrative user.

2. To navigate to your database, select Databases from the Targets menu.

3. Click the database name in the list that appears. The database page appears.

4. Under the Administration menu, select Security, Enterprise User Security. The Oracle Internet Directory Login page appears.

5. Enter the distinguished name (DN) of a directory user who can administer enterprise users in the User field. Enter the user password in the Password field. Click Login.

   See Also:

   Registering Your Database with the Directory, specifically Step 6, where you previously entered the user DN and password to register the database with the directory service

   The Enterprise User Security page appears.

6. Click Manage Enterprise Domains.

   The Manage Enterprise Domains page appears.

7. Select the enterprise domain which contains the database. Click Configure.

   The Configure Domain page appears.

8. Click the User-Schema Mappings tab. All user-schema maps that apply to the enterprise domain are displayed.

9. Click Create.

   The Create Mapping page is displayed.

10. Under the From section, select Subtree. Click the Search icon. Select the DN, cn=Users, dc=us,dc=oracle,dc=com.

11. Under the To section, enter global_ident_schema_user in the Schema field. Click Continue.

    The user-schema mapping is added in the Configure Domain page.

12. Click OK.

Example 2-3 Connecting to the Database as an Enterprise User

SQL> CONNECT orcladmin
Enter password:
Connected.

Example 2-4 Using Enterprise Roles

We start by creating two enterprise users, Joe and Nina. You can create enterprise users using the Oracle Internet Directory Self Service Console.

To create enterprise users, Joe and Nina:

1. Connect to the Oracle Internet Directory Self Service Console. Use the following URL:

   http://hostname:port/oiddas/

   Here, hostname is the name of the host that is running the Oracle Internet Directory server. The port number is the TCP port number on which the Oracle Internet Directory Self Service Console is running. This is 7777 by default.

   
   Description of the illustration getstrtd7.gif

2. Click the Directory tab.

   The Sign In page appears.

   
   Description of the illustration getstrtd8.gif

3. Log in as the user that can create users in Oracle Internet Directory.

   The User page appears.

4. Click Create.

   The Create User page appears.

   
   Description of the illustration getstrtd9.gif

5. Enter joe under User Name. Enter values for the other required fields. Select Enabled under Is Enabled.

6. Click Submit.

7. Click Create Another User.

   The Create User page appears.

8. Enter Nina under User Name. Enter values for the other required fields. Select Enabled under Is Enabled.

9. Click Submit. Click OK.

Next, we create a global role in the database that allows access to the hr.employees table. The following SQL*Plus statements create a global role, hr_access and grant the necessary privilege to it.

SQL> CREATE ROLE hr_access IDENTIFIED GLOBALLY;
Role created.
SQL> GRANT SELECT ON hr.employees TO hr_access;
Grant succeeded.

Next, we create an enterprise role called hr_access and assign the global role to it. We then assign this enterprise role to the enterprise user, Nina. The enterprise role can be created using Enterprise Manager.

To create the enterprise role, hr_access:

1. Log in to Enterprise Manager Cloud Control, as an administrative user.

2. To navigate to your database, select Databases from the Targets menu.

3. Click the database name in the list that appears. The database page appears.

4. Under the Administration menu, select Security, Enterprise User Security. The Oracle Internet Directory Login page appears.

5. Enter the distinguished name (DN) of a directory user who can administer enterprise users in the User field. Enter the user password in the Password field. Click Login.

   The Enterprise User Security page appears.

6. Click Manage Enterprise Domains.

   The Manage Enterprise Domains page appears. This page lists the enterprise domains in the identity management realm.

7. Select the enterprise domain that contains the database. Click Configure.

   The Configure Domain page appears.

8. Click the Enterprise Roles tab.

9. Click Create.

   The Create Enterprise Role page appears.

10. Enter hr_access in the Name field.

    
    Description of the illustration getstrtd11.gif

11. Click Add to add the database global role to the enterprise role.

    The Search and Select Database Global Roles window is displayed.

    
    Description of the illustration getstrtd12.gif

12. Select the hr_access global role in your database. Click Select.

    Note:

    You will be required to log in to the database before you can select the global role.

13. Click the Grantees tab. Click Add.

    The Select Users or Groups window appears.

14. Select user Nina. Click Select.

    
    Description of the illustration getstrtd10.gif

15. Click Continue in the Create Enterprise Role page.

16. Click OK in the Configure Domain page.

The enterprise user, Nina can now access the hr.employees table in the database. The following SQL*Plus statements illustrate this:

SQL> CONNECT Nina
Enter password:
Connected.
SQL> SELECT employee_id FROM hr.employees;
EMPLOYEE_ID
-----------
        100
        101
        102
...
...
107 rows selected.

The enterprise user, Joe cannot access the hr.employees table, as he does not have the enterprise role assigned to him.

SQL> CONNECT joe
Enter password:
Connected.
SQL> SELECT employee_id FROM hr.employees;
SELECT employee_id FROM hr.employees

ERROR at line 1:
ORA-00942: table or view does not exist

Example 2-5 Using Proxy Permissions

The first step in allowing enterprise user proxy is to ALTER the target database user to allow CONNECT through enterprise users. The following SQL statements unlock the SH database account, set a password for it, and ALTER the account to allow enterprise user proxy:

SQL> CONNECT SYSTEM
Enter password:
Connected.
SQL> ALTER USER SH IDENTIFIED BY hrd2guess ACCOUNT UNLOCK;
User altered.
SQL> ALTER USER SH GRANT CONNECT THROUGH ENTERPRISE USERS;
User altered.

Next, use Enterprise Manager to configure the proxy permission. This allows the enterprise user joe to connect as the local database user, SH.

To configure the proxy permission for enterprise user, joe:

1. Log in to Enterprise Manager Cloud Control, as an administrative user.

2. To navigate to your database, select Databases from the Targets menu.

3. Click the database name in the list that appears. The database page appears.

4. Under the Administration menu, select Security, Enterprise User Security. The Oracle Internet Directory Login page appears.

5. Enter the distinguished name (DN) of a directory user who can administer enterprise users in the User field. Enter the user password in the Password field. Click Login.

   The Enterprise User Security page appears.

6. Click Manage Enterprise Domains.

   The Manage Enterprise Domains page appears. This page lists the enterprise domains in the identity management realm.

7. Select the enterprise domain that you wish to configure. Click Configure.

   The Configure Domain page appears.

8. Click the Proxy Permissions tab.

   
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9. Click Create to create a new proxy permission.

   The Create Proxy Permission page appears.

10. Enter SH_Proxy, as the name of the proxy permission, in the Name field.

    
    Description of the illustration getstrtd14.gif

11. Ensure that the Target DB Users tab is selected. Click Add.

    The Search and Select window appears.

12. Log in to the database that contains the SH user. A list of all database users that have been altered to allow enterprise user proxy is displayed.

13. Select the SH user. Click Select.

    The SH user is added under Target DB Users in the Create Proxy Permission page.

    
    Description of the illustration getstrtd15.gif

14. Click the Grantees tab.

15. Click Add.

    The Select Users or Groups window appears.

16. Select cn=users,dc=us,dc=oracle,dc=com under Search Base. Select User under View. Click Go.

    A list of users under the subtree, cn=users,dc=us,dc=oracle,dc=com is displayed.

    
    Description of the illustration getstrtd16.gif

17. Select cn=joe,cn=users,dc=us,dc=oracle,dc=com. Click Select.

    The user joe is added under Grantees in the Create Proxy Permission page.

    
    Description of the illustration getstrtd17.gif

18. Click Continue in the Create Proxy Permission page.

    The proxy permission, SH_Proxy is added in the Configure Domain page.

    
    Description of the illustration getstrtd18.gif

19. Click OK.

The enterprise user, joe can now log in as the local database user SH. The following SQL statements illustrate this:

SQL> REMARK Joe uses his own password to connect as the local database user, SH.
SQL> CONNECT joe[SH]
Enter password:
Connected.
SQL> SELECT * FROM SH.sales WHERE cust_id=4;

   PROD_ID    CUST_ID TIME_ID   CHANNEL_ID   PROMO_ID QUANTITY_SOLD AMOUNT_SOLD
---------- ---------- --------- ---------- ---------- ------------- -----------
        37          4 31-MAY-00          3        999             1       60.43
        39          4 31-MAY-00          3        999             1       38.45
        40          4 31-MAY-00          3        999             1        48.1
...
...
72 rows selected.