Factors to consider before upgrading to Oracle DB 12c: The function of the EM Express 12c in DB 12c is reducedIf you use notifications in DB control, perform a task, and so on, and there is no such function in EM Express 12c, you need to consider these issues extra. The reco
$rootORCL 1 Cdb$rootSys$background 1 Cdb$rootSys$users 1 Cdb$root(Note: read-only pdb$seed not listed here)(2) in the PDB sessionSql> alter session set CONTAINER=PDBORCL;Session altered.Sql> select name,con_id,pdb from V$services;NAME con_id PDB----------------------------------- ---------- ------------------------------PDBORCL 3 PDBORCL5. How to connect directly to a PDB instead of ' alter session set container '?[Email protected] ~]$ sqlplus Pdb1_u1/[email protected]Sql*plus:release 12.1.0.1.0
Oracle 12c has been released for a long time, has been trying to find a way to learn a bit, after all, the subsequent 12c will gradually replace the existing database version, become the mainstream database version. Now 12c some of the most commonly usedCharacteristics for everyone to study together.1. Online renaming
at the end of 2013, it further expands the comprehensive portfolio of Oracle products in application, social networking, platform and infrastructure services. At the same time, Oracle recently released a series of cloud-oriented Database and software integration products, including Oracle Database 12c)
non-routine recovery of Oracle 12C CDB database without database backupFamiliar with Dul friends know Dul is file# 1 Block 1 kcvfhrdb find bootstarp$ Segment Header (in fact Kcvfhrdb is bootstarp$ segment Header RDBA address), Then through the related SQL stored in the bootstarp$ to find some base table objects (obj$,tab$,col$,seg$, etc.), and then through their positioning to the specific object of the seg
July 8, 2013, Oracle China announced that the company's new generation of database oracle12c officially listed, and can be downloaded through the Oracle Technology Network (OTN). The product was released by CEO Larry Ellison at Oracle's global convention as early as October 1, 2012, and after 9 months of waiting, users can finally use Oracle's most heavyweight products.
Compared with Oracle's previous gener
includes the container parameter, which must is set to all, as shown in the following example:
Dbms_goldengate_auth.grant_admin_privilege (' C # #GGADMIN ', Container=>all)Since Oracle 12c is already a multitenant architecture, there are a few things to consider when using Ogg synchronization1. Extraction mode can only be integrated (integrated) mode, does not support the capture of Claasic capture tr
Tags: io os ar using the for SP file div onSince Oracle 12c is already a multitenant architecture, there are a few things to consider when using Ogg synchronization
A CDB contains multiple PDB, and one extract of the source-side deployment can access all PDB redo, which theoretically does not require a separate configuration of extract per PDB.
Extraction mode can only be integrated (integrated
Label:Oracle 12C still supports the beta version of Bbed,oracle 12C, and for those accustomed to using bbed (Oracle scalpel), whether 12C continues to be supported is a matter of great concern, through this experimental test, 12C
Label:Oracle column self-increment-identity Columns in Oracle Database 12c Release 1 (12.1)In previous versions of Oracle 12C, if the column was to grow from a sequence + trigger, the new Identity columns feature was introduced into the 12C
Summary of the new features of Oracle 12c on business impact (1)
1. invisible fields
In Oracle 11g R1, Oracle introduces some good enhancement features in the form of invisible indexes and virtual fields. Inherit and develop the former, and introduce the invisible field idea in Or
root partition, which is the experimental environment so it can beConfigure the NetworkThe root password is now created when installing the installation, and if prompted simply, click two times.Wait for the installation to complete.3. Configure Linux environment A. Test network environment Remember to shut down the local computer firewall.$IP Address Show$vi/etc/hosts configuration in root mode$ping TestEnter Command mode Linux 7 is not the same as the previous version, not in Etc/inittabComman
In previous versions of Oracle 12C, if you wanted to achieve column growth, you would need to implement a sequence + trigger, and then 12C ORACLE introduced the Identity columns new feature, enabling the column to grow, and Mysql,sql server-like functionality.Using syntaxORACLE 12C
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 Features of Oracle
Linux-install Oracle (CentOS-Oracle 12c) and centos7 install oracle12c
Step 1: network connection, which is described in my previous blog.
Purpose of network connection: to use the yum command, download the file directly online.
Step 2: Go to the oracle official website to download
The first step: network connection, in my last blog has introduced, no longer said.
Purpose of network connection: In order to be able to use the yum command, download files directly on the Internet.
Step two: Go to Oracle website to download 12c
Database server-Side two files: (Installed in Linux)
Linuxamd64_12102_database_1of2.zip
Linuxamd64_12102_database_2of2.zip
Put these two files in the Linux T
PL/SQL enhancements in Oracle 12c
Oracle 12c enhances a series of methods for defining and executing PL/SQL program units. This article covers several new features of Oracle 12c:
1. optimized the caller permission function for the
Tags: passwords dba OMS databaseThe former has deployed Oracle Cloud Control 12c on the virtual machine, and for a few days, forget the login password. The main reason is that Oracle-related software now provide a stronger security mechanism than before. What simple "Oracle" like PWD is no longer supported. It's just a
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