Tags: china-pub computer OracleThis is a high quality pre-sale recommendation of Computer class OCA Certification Exam Guide (1z0-061) Oracle Database 12c SQL Foundation ". Oracle Certified Master (OCM) 's latest work, the OCA Certification exam official book, covers all O
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
As we all know, there are many college graduates in China who need employment every year. However, most college students in China are more likely to use their skills,Oracle WDPThe project can lay a skill Foundation and store for this part of the crowd, skill ready), through the Oracle WDP for about three months of certification Skills Cultivation and learning, to
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
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
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
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
1,OracleOfficial preparations recommended by the company
Generally speaking, Oracle has a lot of examination content, and the examination questions are also very detailed, it has a strong requirement on hands-on ability. Therefore, in order to be sure, we must make full preparations in advance, and pay attention to hands-on practices. The following authentication methods are recommended on the official Oracle
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
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
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
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