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Oracle® Database Administrator's Guide
12c Release 1 (12.1)

E17636-21
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41 Administering CDBs and PDBs with Cloud Control

This chapter describes administering multitenant container databases (CDBs) and pluggable databases (PDBs) with Oracle Enterprise Manager Cloud Control.

In particular, this chapter covers the following topics:

Administering CDB Storage and Schema Objects with Cloud Control

This section contains the following topics:

About Managing and Monitoring CDB Storage and Schema Objects

You can use Enterprise Manager to manage and monitor CDB storage and schema objects. With Enterprise Manager you can:

  • View database storage objects, such as tablespaces, and schema objects, such as tables, across the CDB. You can also view objects belonging to the CDB$ROOT container.

  • View and manage database storage and schema objects at the container level.

  • Use storage metrics to gather data across the CDB and generate Enterprise Manager incidents (alerts) at the container level.

  • Run Storage and Undo Advisors for the CDB and view related storage advice.

  • Support configuration metric collection for CDB/PDB.

The Database Object Search pages are displayed when you select certain menu items from either the Schema or Administration menus. These pages conduct searches for database objects based on criteria you enter, such as schema name, object name, or container name, which is only available if you are viewing from the CDB level. The Database Object Search page features are supported at both the CDB level and PDB level. The Container column displays on the Search page at both the CDB level and container level.

Undo tablespaces can only be managed from the CDB$ROOT container.

Managing CDB Storage and Schema Objects

To manage CDB storage and schema objects, follow these steps:

  1. Navigate to the CDB database home page.

  2. From the CDB menu, access a feature supporting the CDB level view, such as accessing the Tablespaces Search page.

  3. Log in as a common user. The Tablespaces Search page displays in the CDB context.

  4. Perform a search. In the above example, the Tablespace page displays all tablespaces within the CDB including those belonging to the CDB$ROOT container. An additional column displays the container name.

  5. Perform any management feature if you have the proper privilege associated with that operation.

Managing Per-Container Storage and Schema Objects

To manage per-container storage and schema objects, follow these steps:

  1. Navigate to a CDB target.

  2. From the database menus, access a feature supporting the Container Database (CDB) and per-container views, such as the Tablespaces Search page.

  3. Log in as a common user. The Tablespaces Search page is displayed using CDB as its context.

  4. Switch to a specific container. Once context switcher is used to switch containers, the pages automatically refresh and show container-only data.

  5. Perform a search. The Tablespace page displays all tablespaces within the selected container.

  6. You can perform any management feature for which you have the proper privilege associated with that operation.

Monitoring Storage and Schema Alerts

To monitor storage and schema alerts, follow these steps:

  1. Navigate to a Pluggable Database target.

  2. From the Oracle Database menu, select Monitoring, then select Incident Manager.

    Open incidents for Storage and Schema area metrics are displayed. The container name is part of the incident message.

Administering PDBs with Cloud Control

This section provides information about performing PDB administration tasks. It contains the following topics:

Switching Between PDBs

If you are performing a task such as granting user privileges or performance reporting, and you need to perform the same task on another PDB, then you can switch to another PDB. To switch between PDBs while staying on the same feature page:

  1. From the current PDB, select any PDB scope page (such as, Manage Advanced Queues).

    In the upper-left corner of the window, the name of the PDB will update to display a context switcher as a drop-down menu.

  2. Click the context switcher to display the drop-down menu. This menu shows the PDBs most recently used.

    Select a PDB from this list.

  3. The page will update to show the System Queues.

  4. Click the context switcher to display the drop-down menu. If the menu does not show the PDBs you want, then select All Containers.

  5. A Switch Container window will pop up to display all available PDBs for the monitored target.

    Select a PDB from this list and click OK.

  6. The page will update to show data for the selected PDB.

Altering the Open Mode of a PDB

To change the open mode of a single-instance PDB to Open or Close:

  1. From the Oracle Database menu, select Control, then select Open/Close Pluggable Database.

  2. From the Open/Close Pluggable Database page, select a PDB from the list.

  3. Click the Action drop-down menu and select the appropriate actions. Your choices are Open, Open Read Only, and Close.

  4. In the Confirmation dialog window, click Yes to complete the change. A Processing dialog window appears to show you the progress of your choice.

  5. Once the open mode change completes, the Open/Close PDB page will update to show the new open mode of the PDB.

To change the open mode of a PDB in a Cluster/RAC to Open or Close:

  1. From the Oracle Database menu, select Control, then Open/Close Pluggable Database.

  2. From the Open/Close Pluggable Database page, select a PDB from the list. The RAC instances are shown along with the PDB's current open mode on those instances.

  3. Once you select a PDB, a panel appears below the list to show the open mode of the PDBs on the different RAC instances. The open and close options apply to the PDBs on the RAC instance's panel. You can open or close a PDB on any number of available RAC instances.

  4. In the Confirmation dialog window, click Yes to complete the change. A Processing dialog window appears to show you the progress of your choice.

  5. Once the open mode change completes, the Open/Close Pluggable Database page will update to show the new open mode of the PDB.