oracle 12c new features

Oracle 10G New Features-- RMAN Author: Fuyuncat Source: WWW.HelloDBA.COM The Rman incremental backup scheme, offline recovery of incremental backups, recovery previews, recovery from Resetlogs, file compression, and so on, become more powerful.Most people agree that Rman is the de facto database backup tool for

New Features of Oracle 11g (1)-virtual column, oracle11g Database Version: Oracle Database 11g Enterprise Edition Release 11.2.0.2.0-64bit The Oracle11g introduces new features of virtual columns, which are described as follows: 1

[Translated from mos] New Features of Oracle 11gR2 relink, 11gr2relink New Features of Oracle 11gR2 relink Source:Oracle 11gR2 Relink New Feature (Document ID 883299.1) Applicable:Oracl

Before Oracle11.2, you must register the public IP address and virtual IP address of the node to the DNS server to connect the client to the database normally and support Server Load balancer. Dimensions of some clusters Before Oracle 11.2, you must register the public IP and virtual IP of the node to the DNS server to connect the client to the database normally and support load balancing. Dimensions of some clusters Grid plug-and-play (GPnP) Grid

information, this feature can package information related to an event. And you can also send packaged information to the Oracle support team. 6, based on the characteristics of the patch (Feature Based patching) This feature makes it easy to distinguish between the features in a patch package that you are using and that you have to play. Enterprise Manager (EM) enables you to subscribe to a feature-based

=8192*.db_domain= "*.db_name= ' Matrix '*.db_recovery_file_dest= '/u2/oracle/fast_recovery_area '*.db_recovery_file_dest_size=4322230272*.diagnostic_dest= '/u2/oracle '*.dispatchers= ' (protocol=tcp) (SERVICE=MATRIXXDB) '*.memory_target=419430400*.open_cursors=300*.processes=150*.remote_login_passwordfile= ' EXCLUSIVE '*.undo_tablespace= ' UNDOTBS1 '*.db_unique_name= ' MATRIXDG '*.log_archive_config= ' dg_c

New Features of Oracle 11G: collecting multi-column statistics Generally, when we submit an SQL statement to an Oracle database, Oracle selects an optimal method for execution, which is achieved by the Query Optimizer. CBO (Cost-Based Optimizer) is the default query Optimize

About Oracle 10 Gb performance, the most talked about is the new automatic workload repository (AWR) features and proactive performance monitoring through automatic database Diagnostic Monitoring (ADDM. They are widely reported as an alternative to STATPACK. Indeed, according to Mr. Niemiec, they can do more to represent the future of

New Features of Oracle 11g virtual column partitioning There is a need: a document table should be partitioned by month. If it is on Oracle 10 Gb, only one field can be added. It will be different after the Oracle 11g. You can use virtual column processing. SQL> select * fro

New Features of Oracle 11g Flashback Data Archive instance, 11 gflashback Flashback Data Archive (flash back log archiving) is actually used to save undo Data for a long time. For some important tables, you can customize the retention period of their historical records, its behaviors are very similar to those of the undo tablespace, and they are completely transp

Oracle 10g new features-code obfuscation Author: Fuyuncat Source: www.HelloDBA.com Oracle 9i Previously, a command ' warp ' was provided to encrypt the code. But it's command-line, it's script-oriented. In 10g, Oracle Package DBMS_DDL provides a

DB version: Oracle database 11g Enterprise Edition release 11.2.0.2.0- 64bitORACLE11G adds new features for virtual columns, as described below:1> can only create virtual columns on the heap organization table (normal table), cannot create virtual columns on index organization tables, external tables, temporary tables2> Virtual column cannot be lob or raw typeThe

". "RO_TEST" DDL statements that affect table data are also restricted. SQL> TRUNCATE TABLE ro_test;Truncate table ro_test*ERROR at line 1:ORA-12081: update operation not allowed on table "TEST". "RO_TEST" SQL> ALTER TABLE ro_test ADD (description VARCHAR2 (50 ));Alter table ro_test ADD (description VARCHAR2 (50 ))*ERROR at line 1:ORA-12081: update operation not allowed on table "TEST". "RO_TEST" A table is a read-only table, but its operations on related indexes are not affected. When the table

1. relink script description in 11gr2 The two blogs of oracleoption and its link are described as follows: Oraclebinary options description Http://blog.csdn.net/tianlesoftware/article/details/7577637 Description of relink binary options for a single oracle instance Http://blog.csdn.net/tianlesoftware/article/details/7577652 From 11gr2 (11.2.0.1, 11.2.0.2 etc ...) the relink script no longer scans *. MK files andno longer runs the make commands (tha

Introduction In. NET applications, there are many ways to achieve access to Oracle databases. However, from functional and performance analysis, Oracle Data Provider for. NET (odp.net) is undoubtedly our best option, a set of interfaces designed by Oracle specifically for. NET applications, which are accessed much faster than other methods. This article will in

Before 11g, add a field with default value, the implementation principle is as follows:ALTER TABLE T1 add C1 varchar2 (a) default ' XX ' NOT null;Assuming that the T1 table has 40 million rows of data, Oracle returns a "Success Prompt" to the user when it executes the above DDL statement while updating the 40 million rows of data successfully. The following issues may be caused:1. Updating 40 million rows of data takes a long time to complete.2. Exhau

Oracle 12C has been released... Next I will learn about silent installation and configuration of Oracle 12C and the example users. Installing Oracle 12C in Linux-6-64 New

Tags: Oracle 12.2 online moveBefore the Oracle12.2 version, a move operation on a table adds a exclusive lock to the table, and the DML operation cannot be performed on the table. Although the move operation has an online clause, it applies only to IoT tables, not to heap tables. This means that you cannot perform any DML operations while doing a move operation on the table, and you can only stop the business if you are doing a move operation on the k

New Features of Oracle 10 GB-code obfuscation Author: Fuyuncat Source: Www.hellodba.com Before Oracle 9i, a command 'warp' was provided to encrypt the code. However, it is based on scripts in the command line mode. In 10 Gb, the Oracle package dbms_d