Oracle database

Oracle® Database
Readme 11g Release 2 (11.2)
E11015-04 March 2010

Purpose of this Readme This Readme file is relevant only to the delivered Oracle Database 11g Release 2 (11.2) product and its integral parts, such as SQL, PL/SQL, the Oracle Call Interface (OCI), SQL*Loader, Import/Export utilities, and so on. This Readme documents differences between the server and its integral parts and itsdocumented functionality, as well as known problems and workarounds. A complete list of open known bugs is available on the product CD. Operating system releases, such as Linux, UNIX and Windows, often provide readme documents specific to that operating system. Additional Readme files may also exist. This Readme file is provided instead of system bulletins or similar publications. For licensinginformation, refer to the Oracle Database Licensing Information.

Contents
Section 1, "Nomenclature Changes" Section 2, "Compatibility, Upgrading, Downgrading, and Installation" Section 3, "Features Not Available or Restricted in This Release" Section 4, "Default Behavior Changes" Section 5, "Automatic Storage Management" Section 6, "Oracle Enterprise Manager Database Control" Section 7,"Database Security" Section 8, "Encryption and Integrity" Section 9, "Java and Web Services" Section 10, "Media Management Software" Section 11, "Oracle Application Express" Section 12, "Oracle Client Applications" Section 13, "Oracle Configuration Manager" Section 14, "Oracle Data Mining" Section 15, "Oracle Internet Directory" Section 16, "Oracle Multimedia" Section 17, "Oracle Net Services" Section18, "Oracle Real Application Clusters"

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Section 19, "Oracle Grid Infrastructure for a Cluster" Section 20, "Oracle Real Application Testing" Section 21, "Oracle ODBC Driver" Section 22, "Oracle OLAP" Section 23, "Oracle Spatial" Section 24, "Oracle SQL Developer" Section 25, "Oracle Text" Section 26, "Oracle Ultra Search" Section 27, "Oracle Warehouse Builder" Section 28, "Oracle Workflow"Section 29, "Oracle XML DB" Section 30, "PL/SQL" Section 31, "Pro*C" Section 32, "Pro*COBOL" Section 33, "SQLJ" Section 34, "SQL*Plus" Section 35, "Summary Management" Section 36, "Oracle Streams" Section 37, "Documentation Addendum" Section 38, "Open Bugs" Section 39, "Documentation Accessibility"

1 Nomenclature Changes
Note the following nomenclature changes:
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Flash Recovery Area hasbeen renamed to Fast Recovery Area. The name Oracle interMedia was changed to Oracle Multimedia in Oracle Database 11g Release 1 (11.1). The feature remains the same, only the name has changed.

2 Compatibility, Upgrading, Downgrading, and Installation
For late-breaking updates and best practices about preupgrade, post-upgrade, compatibility, and interoperability discussions, see Note 785351.1on My Oracle Support (formerly OracleMetaLink at https://metalink.oracle.com/) that links to the "Upgrade Companion" web site for Oracle Database 11g Release 2.

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Caution: After installation is complete, do not manually remove or run cron jobs that remove /tmp/.oracle or /var/tmp/.oracle directories or their files while Oracle software is running. If you remove these files, then Oraclesoftware can encounter intermittent hangs. Oracle grid infrastructure for a cluster and Oracle Restart installations fail with the following error:
CRS-0184: Cannot communicate with the CRS daemon.

2.1 Deinstallation Restrictions
The following sections describe deinstallation and deconfiguration restrictions. See Section 38.2, "Deinstallation Tool Known Bugs" for additional information.

2.1.1Deinstallation Using OUI
Starting with Oracle Database 11g Release 2 (11.2), a separate deinstallation and deconfiguration tool ships with the product (as a separate download). Use the deinstall tool to deinstall and deconfigure the software. This tool can be used to deinstall and deconfigure Oracle grid infrastructure for a cluster homes, Oracle Real Application Clusters (Oracle RAC) database...