Changes in Oracle Database
The following are changes in Oracle Database SecureFiles and Large Objects Developer's Guide for Oracle Database.
New Features
New Features for 19c Release
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Oracle Database allows configuring signature-based security for large object (LOB) locators using the LOB_SIGNATURE_ENABLE initialization parameter
Managing LOB Signatures for more information.
New Features for 18c Release
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Oracle Database allows
LOBs andLOBrelated functionality to be used with Oracle Database In-Memory.Oracle Database In-Memory Guide for more information.
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Oracle Database extends Exadata support for
LOBs to CompressedLOBs. -
Oracle Database has improved the performance of multiple persistent and temporary
LOBoperations.
Deprecated Features
List of deprecated features in Oracle® Database SecureFiles and Large Objects 18c
Oracle Multimedia is deprecated in Oracle Database Release 18c, and may be desupported in a future release. Oracle recommends that you stop using deprecated features as soon as possible.
List of deprecated features in Oracle® Database SecureFiles and Large Objects 12c, Release 2 (12.2)
The following list of features is deprecated in Oracle Database 12c Release 2 (12.2), and may be desupported in a future release.
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DBMS_LOB.LOADFROMFILEProcedure.Use
DBMS_LOB.LoadClobFromFileorDBMS_LOB.LoadBlobFromFileinstead. -
LOB Buffering subsystem APIs
The following functions are deprecated beginning with Oracle 12c Release 2 (12.2):
In place of using these LOB buffering functions, use the LOB prefetch feature described in Prefetching of LOB Data, Length, and Chuck Size.
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DBMS_XSLPROCESSOR.CLOB2FILEprocedure.Use
DBMS_LOB.CLOB2FILEprocedure instead. -
DBMS_LOB.LOADFROMFILEProcedure.Use
DBMS_LOB.LoadClobFromFileorDBMS_LOB.LoadBlobFromFileinstead. -
DBMS_XSLPROCESSOR.CLOB2FILEprocedure.Use
DBMS_LOB.CLOB2FILEprocedure instead.
Security Update for Native Encryption
Oracle provides a patch that you can download to address necessary security enhancements that affect native network encryption environments in Oracle Database release 11.2 and later.
This patch is available in My Oracle Support note 2118136.2.
The supported algorithms that have been improved are as follows:
- Encryption algorithms: AES128, AES192 and AES256
- Checksumming algorithms: SHA1, SHA256, SHA384, and SHA512
Algorithms that are deprecated and should not be used are as follows:
- Encryption algorithms: DES, DES40, 3DES112, 3DES168, RC4_40, RC4_56, RC4_128, and RC4_256
- Checksumming algorithm: MD5
If your site requires the use of network native encryption, then you must download the patch that is described in My Oracle Support note 2118136.2. To enable a smooth transition for your Oracle Database installation, this patch provides two parameters that enable you to disable the weaker algorithms and start using the stronger algorithms. You will need to install this patch on both servers and clients in your Oracle Database installation.
An alternative to network native encryption is Transport Layer Security (TLS), which provides protection against person-in-the-middle attacks.
See Also:
- Choosing Between Native Network Encryption and Transport Layer Security in Oracle Database Security Guide
- Improving Native Network Encryption Security in Oracle Database Security Guide
Desupported Features
List of desupported features in Oracle® Database SecureFiles and Large Objects 19c
See Also:
Oracle Database Upgrade Guide for more information.
List of desupported features in Oracle® Database SecureFiles and Large Objects 18c
The following functions related to LOB Buffering subsystem APIs are desupported in its entirety:
List of desupported features in Oracle® Database SecureFiles and Large Objects 12c, Release (2) 12.2
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Desupport of Advanced Replication
The Oracle Database Advanced Replication feature is desupported in its entirety.
See Also:
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Oracle Database Upgrade Guide for more information.
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