Oracle® Database Express Edition

Readme

11g Release 2 (11.2)

E21743-04

May 2014

This release contains important information that was not included in the platform-specific or product-specific documentation for Oracle Database Express Edition (Oracle Database XE).

This document may be updated after it is released. To check for updates to this document, see the Express Edition documentation: using the system menus, from Oracle Database 11g Express Edition, click Get Help, then Read Documentation:

For licensing information, see Oracle Database Express Edition Licensing Information.

For a summary of the major changes between Oracle Database XE Release 11.2 and the previous release (10.2) and more information about using the Oracle Database XE user interface, see Oracle Database Express Edition Getting Started Guide.

This document covers the following topics:

- Upgrade and Table Migration Issues

- Open Bugs and Known Issues

- Documentation Accessibility

1 Upgrade and Table Migration Issues

This section discusses issues relating to:

- XE Upgrades

- Migrating Tables and Data from One XE Installation to Another

1.1 XE Upgrades

The last released version of XE was XE 10.2. The following describes upgrade support for XE:

- Upgrade from XE 11.2 to EE 11.2.0.2 is not supported.

- Upgrade from XE 11.2 to SE 11.2.0.2 is not supported.

- Migration from XE 10.2 to XE 11.2 is supported and described in your installation guide. See Oracle Database Express Edition Installation Guide for Microsoft Windows or Oracle Database Express Edition Installation Guide for Linux x86-64.

1.2 Migrating Tables and Data from One XE Installation to Another

You can export tables and data from one XE installation and import them into another. For example, if you have tables in an XE 11.2 database on a Windows 32-bit system, you can export the tables and data on that system, install XE on a Windows 64-bit system, and then import the tables and data into the XE database on the Windows 64-bit system.

To be able to export from one installation and import into another installation, you must be able to access the first installation (or you must have previously exported using that installation). You must also be able to make the exported file or files available for import on the second system.

For more information, see "Exporting and Importing Metadata and Data" in Oracle Database Express Edition 2 Day DBA.

2 Open Bugs and Known Issues

This section lists known bugs for this release.

- Section 2.1, "Some Oracle Text Features Not Available"

- Section 2.2, "Bugs 11776121, 12615964"

- Section 2.3, "Windows Bugs"

- Section 2.4, "Linux x64 Bugs"

2.1 Some Oracle Text Features Not Available

The following Oracle Text Features are not available for this release of Oracle Database XE 11.2. These features are described in Oracle Text Reference.

Bug 12421589

- AUTO_LEXER lexer type

- Entity Extraction (CTX_ENTITY package)

- The following INDEX_STEMS attribute values for the BASIC_LEXER lexer type:

- ARABIC

- BOKMAL

- CATALANCROATIAN

- CZECH

- DANISH

- DERIVATIONAL_NEW (see Note)

- DUTCH_NEW (see Note)

- ENGLISH_NEW (see Note)

- FINNISH (see Note)

- FRENCH_NEW (see Note)

- GERMAN_NEW (see Note)

- GREEK

- HEBREW

- HUNGARIAN

- ITALIAN_NEW (see Note)

- NYNORSK

- POLISH

- PORTUGUESE

- ROMANIAN

- RUSSIAN

- SERBIAN

- SLOVAK

- SLOVENIAN

- SPANISH_NEW (see Note)

- SWEDISH (see Note)

2.2 Bugs 11776121, 12615964

Oracle ODBC driver may fail if a keyset-driven cursor is used with scroll option or for bulk operations.

Cause:

ODBC application developers set statement attributes before a query is executed and data is fetched from the server. When SQL_ATTR_CURSOR_TYPE is set to SQL_CURSOR_KEYSET_DRIVEN, the application can scroll through the result-set. However, this functionality is not working when someone connects to Oracle database using Oracle ODBC driver.

Workaround:

If a failure occurs, consider an alternative coding approach, or contact Oracle Support Services.

2.3 Windows Bugs

This section lists known Windows bugs for this release.

2.3.1 Bug 11718118

Oracle Database Express Edition installation on Windows 32 bit: Access denied error while trying to stop database

Cause:

While installing Oracle Database XE on these Windows operating systems, Microsoft Windows Server 2008 and Microsoft Windows 7, these command shortcuts cause this error:

- Stop Database

- Start Database

- Restore Backup

Workaround:

Right-click on the keyboard shortcut and select Run as Admin Option.

2.3.2 Bug 12373426

After deinstallation of Oracle Express Edition, the desktop may go blank if Windows Explorer is stopped.

Cause:

During deinstallation of Oracle XE, if any of the files are locked from the Express Edition Oracle Home, then the user is prompted to stop the processes that hold locks on these set of files. Sometimes, Windows Explorer is on this list, and the user attempts to stop the Windows Explorer process. This can cause the Windows desktop to go in a blank for couple of minutes until a new explorer process comes up.

Workaround:

When prompted, the user can ignore the suggestion to stop Windows Explorer.

If the user has already stopped the Windows Explorer, after deinstallation, the user can manually delete the Oracle Home.

2.4 Linux x64 Bugs

This section lists known Linux x64 bugs for this release.

2.4.1 Bug 11738319

DB STARTUP FAILS WITH GENERIC ORA-47500 WITH DB_CACHE_SIZE;NEED BETTER DIAGNOSIS

If two init.ora parameters that Oracle does not support in XE are specified in the database, startup fails with the generic error message:

ORA-47500: XE edition memory parameter invalid or not specified

Cause:

An invalid parameter or a value more than the maximum allowed for memory was specified. These two parameters are not supported: use_indirect_buffers and db_cache_size.

Workaround:

Use allowed parameter or reduce memory size or upgrade to Standard or Enterprise edition.

Instead of db_cache_size, use sga_target or memory_target. There is no substitution for use_indirect_buffers.

2.4.2 Bug 11768963

XE11202-110119.0005:XE DATABASE IS NOT COMING UP AFTER REBOOT ON SLES11

The XE database does not come up automatically on SLES11 after rebooting.

Workaround:

Start the XE database manually.

2.4.3 Bug 11857642

XE11202-110119.0005:OBJECT ALREADY EXISTS ERRORS IN IMPORT LOGS OF 11.2XE

The procedure that exports the 10.2 XE database and imports it into 11.2 XE will report warning messages that can be ignored. These messages are:

ORA-31684: Object type <object name> already exists

ORA-39151: Table <table name> exists. All dependent metadata and data will be skipped due to table_exists_action of skip

ORA-39111: Dependent object type <object type> skipped, base object type <object name> already exists

There will also be a block of messages that looks like the following which can be ignored:

ORA-39083: Object type PROCACT_SYSTEM failed to create with error:
ORA-01917: user or role 'FLOWS_020100' does not exist
Failing sql is:
BEGIN
SYS.DBMS_UTILITY.EXEC_DDL_STATEMENT('GRANT EXECUTE ON DBMS_RLS TO
FLOWS_020100 WITH GRANT OPTION');COMMIT; END;
Processing object type DATABASE_EXPORT/SCHEMA/PROCACT_SCHEMA
ORA-39083: Object type PROCACT_SCHEMA failed to create with error:
ORA-31625: Schema FLOWS_020100 is needed to import this object, but is
unaccessible
ORA-01435: user does not exist
Failing sql is:
BEGIN
sys.dbms_logrep_imp.instantiate_schema(schema_name=>SYS_CONTEXT('USERENV','CUR
RENT_SCHEMA'), export_db_name=>'XE', inst_scn=>'400107');COMMIT;
END;

3 Documentation Accessibility

For information about Oracle's commitment to accessibility, visit the Oracle Accessibility Program website at http://www.oracle.com/pls/topic/lookup?ctx=acc&id=docacc.

Access to Oracle Support

Oracle customers have access to electronic support through My Oracle Support. For information, visit http://www.oracle.com/pls/topic/lookup?ctx=acc&id=info or visit http://www.oracle.com/pls/topic/lookup?ctx=acc&id=trs if you are hearing impaired.

Oracle Database Express Edition Readme, 11g Release 2 (11.2)

E21743-04

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The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing.

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If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, the following notice is applicable:

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This software or hardware is developed for general use in a variety of information management applications. It is not developed or intended for use in any inherently dangerous applications, including applications that may create a risk of personal injury. If you use this software or hardware in dangerous applications, then you shall be responsible to take all appropriate fail-safe, backup, redundancy, and other measures to ensure its safe use. Oracle Corporation and its affiliates disclaim any liability for any damages caused by use of this software or hardware in dangerous applications.

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