One: Multitenant Architecture (12.1.0.1)Multi-tenant architecture is the new heavyweight feature of Oracle 12c (12.1), built-in multi-tenancy (multi-tenancy), a container database (container) that can hold multiple pluggable Databases, Each pluggable database is independent of the other pluggable database.For external applications and developers, pluggable databases looks like a single database before the n
Record the restoration of the ORACLE 12C CDB database when the current redo is lost. ORACLE 12C redo exception recovery test-some pdb are not open normallyIn order to verify the restoration of the ORACLE 12C CDB database when redo
1. View host and database information [[emailprotected] ~]$ sqlplus/as sysdbasql*plus:release 12.2.0.1.0 Production on Tue May 01:19:35 2018copyright (c) 1982, Oracle. All rights reserved.connected to:oracle Database 12c Enterprise Edition Release 12.2.0.1.0-64bit production nbsp Sql> set linesize 300set pagesize 999select * from V$version;bannercon_ ID-------------------------------------------------------
Dangdang page Link:Http://product.dangdang.com/23625712.html1th. Oracle Database Basics1.1 What is a relational database1.1.1 Relational Database modelFounder of the 1.1.2 relational data model1.2 A brief history of Oracle database developmentThe beginning of 1.2.1 Company1.2.2 The evolution of Oracle Database1.3 Database RDBMS1.4 SQL Language Introduction1.4.1 S
Installation of Oracle Database 12C in Linux
Install Oracle Database 12C in Linux. After the installation, Oracle Configuration Manager fails to be properly installed, which does not matter. It will be installed later. It must be about environment variables or permissions. A
Method/Step1 download version of Oracle 12c R2 forwindows:Http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html includes two compressed packages: winx64_12c_ Database_1of2.zip,winx64_12c_database_2of2.zipUnzip the version of Oracle 12c R2 for WindowsUnzip the two compressed packets into the
Description of Oracle 12c CDB and PDB database startup and shutdown, 12 cpdb
In Oracle 12c, it is divided into CDB and PDB. Their startup and shutdown operations are as follows.
1 Container Database (CDB)
For CDB, the startup and shutdown methods are the same as the traditional ones. The specific syntax is as foll
Oracle transaction-based temporal tables, under 11g and 12C, can be seen when statistics on temporary tables are collected, the former records are emptied, the latter is not, which is an important distinction. In the company environment with 12C, in the field with 11g, using temporary table will cause the time is slow, before I have a post http://blog.csdn.net/st
The transaction-based temporary tables in Oracle are under 11 GB and 12C. After the statistical information of the temporary tables is collected, the former records are cleared, and the latter does not, which is an important difference. In the company
The transaction-based temporary tables in Oracle are under 11 GB and 12C
First, the environmentService side: Oracle 12.2.0.1 RACClient: Less than Oracle 11.2.0.3Second, the phenomenonWhen using a less than Oracle 11.2.0.3 client version connection to the Oracle 12.2.0.1 RAC database "Ora-28040:no matching authentication protocol"Third, solve the problemMethod One: According to the official
The entire installation of Oracle cloud control 12c is more complex, just the choice of installation path, login password, port number and many other configurations are confusing, dizzying. This article describes how to get installed after the installation of the various types of port number, URL and how to start, close the cloud control and so on for your reference.For the installation configuration of clo
Label:Installing Oracle 12c on Windows 7 64-bit does not have a set character set, using the operating system default character set: we8mswin1252, modify the character set to: ZHS16GBK. Because the process is irreversible, you first need to back up the database. 1. Fully prepared database 2. Querying the current character set PARAMETER VALUE
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Tags:control1.0targedbf table spaces archappend backup strategy home Oracle 12c Backup and recovery strategy (Rman Backup [Open Archive/control file/data File/Archive log]): Backup strategy: * Make a full backup of the database (including all data and read-only tablespace) every six months * once a week level 0 backup * One level backup per day * Pre-backup set R Man parameters: Configure Controlfile auto
Label:Before 12c, if you want to achieve the automatic growth of column, usually through the sequence, but this problem is resolved in 12c, Oracle deferred the identity column function, which solves the previous problem perfectly, here is my simple test, For reference! Sql>Alter pluggable databaseAllOpen
Pluggable database altered. Sql>Select Name,open_modeFrom
Summary of new features in Oracle 12C SQL
Multiple indexes on the same field
Before Oracle 12c R1, a field cannot have multiple indexes in any form. Some may wonder why a field usually requires multiple indexes. In fact, there are many fields or field sets that require multiple indexes. In
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