Label: In oracle12c, the concept of pluggable databases, the PDB, is added to allow a database container (CDB) to host multiple pluggable databases (PDB). CDB is all called Containerdatabase, the Chinese translation is a database container, the PDB is all called pluggabledatabase, you can plug and unplug the database. The following is an official document about the CDB vs. pdb diagram. In CDB, you can only create a C # #或C # #开头的用户, and if you do not add c##, you will be prompted with the error
SOURCE end: 12C RAC primay backup fileTarget side: 12C Single InstancePartial Summary:1 Pfile Modification2 Disable Redo Thread N3 Drop logfile Group N4 Rename LogFile5 Cancel Log Remote transferIf primary is in Maximum availablity mode, the control file will detect log_archive_dest_n in case the log transfer is normal? So without processing will be an error:LGWR (ora-16072): Minimum of 1 LGWR standby datab
Install Agent AgentIn the em11g, agent installation is through the host side of the producer to download Agent agent and installation, on the EM12C version, on the EM12C server, through the "push" way the agent agent in the remote installation to the monitored host side, You can also install agent agents for multiple hosts at the same time.Official documents:Http://www.gokhanatil.com/2011/10/how-to-deploy-oracle-management-agent.htmlInstallation metho
This article mainly introduces the basic management of CDB and PDB, data source Oracle official.Basic concepts:Multitenant Environment: Multi-tenant environmentCDB (Container database): DB containerPD (Pluggable database): pluggable databasesCDB vs. pdb diagramCOMMON users (ordinary users): often built on the CDB layer, user name in C # #或c # #开头;Local Users: Only the PDB layer is established, and container is specified when it is established.In
/dwjrdbpdb/undotbs01.dbf '2018-07-05t23:42:22.481081+08:00Errors in FILE/U01/APP/ORACLE/DIAG/RDBMS/DWJRSTDYDB/DWJRSTDYDB/TRACE/DWJRSTDYDB_M000_129832.TRC:Ora-01110:data file One: '/u01/app/oracle/oradata/dwjrstdydb/dwjrdbpdb/users01.dbf ' Refer to MOS Documentation:ORA-01110 for all Files in Standby Database (document ID 2322290.1) ChangesNew or upgraded Standby on 12.2.0.1 Cause Unpublished Bug 24844841:ph
Create an Oracle 12c user
Oracle 12c accounts can be divided into public accounts and local users. A common account is created under CDB and can be used by all PDB users. A local account can only be created in PDB.
Create a public userAlter session set container = CDB $ ROOT;Create user c # u02 identified by
The concept of change sets is introduced in conformance CDC. A change set can include several tables that have relationships with each other, such as a primary foreign key reference relationship. The CDC can guarantee data consistency when capturing and releasing changes in a change set. This exercise describes how to use a CDC that guarantees consistency.1 Environment PreparationSOURCE table: Odi_src. Dept,odi_src. Emp Target table: Odi_tag. DEPT, Odi_tag. Emp Configuration topology See the cre
128net.ipv4.ip_local_port_range = 9000 65500net.core.rmem_default = 262144net.core.rmem_max = 4194304net.core.wmem_default = 262144net.core.wmem_max = 1048576Modifications are still valid for reboots. In SuSE Linux Enterprise Server Systems, the following command allows the system to read the/etc/sysctl.conf file when it restarts:# /sbin/chkconfig boot.sysctl on
Type the following command to change the current value of the kernel parameter:# /sbin/sysctl -pCheck the output to verify that th
Oracle 12C TRUNCATE TABLE CASCADE
The truncate table cascade statement is provided in Oracle 12c to delete the association when the TABLE has a primary foreign key relationship and is cleared. The following is a demonstration.
1. Prepare the test tableSQL> CREATE TABLE t1 (2 id NUMBER,3 description VARCHAR2 (50 ),4 CON
This article describes how to use simple CDC for Oracle ODI 12c. It is the simplest kind of CDC. In this mode, each CDC table change is captured independently, and there is no need to consider data consistency between multiple tables with primary foreign key reference relationships.1. Import Knowledge ModulePrior to this, all the knowledge modules have been imported, and the CDC feature knowledge module as
One, DB default character set Al32utf8Specify the database character set when you create the database. Starting from Oracle Database 12c Release 2, if you use Oracle Universal Installer (OUI) or Oracle database Configuration Assistant (DBCA) to create a database and then the default database character set used is the U
Because you want to switch servers, re-install Oracle, you want to use the latest 12c. It took a whole day to record the process and problems as follows.First, download Oracle 12c:Half of the 12.1.0.2.0 on the official web site is really down, with the hundred-gigabit fiber is also to half of the failure. So you can only download 12.1.0.1.0.II. installation?
Tags: share roo agent list specific main tar ber ATI Install Agent Agent When em11g, agent installation is through the host side of the producer Download agent and install, on the EM12C version number, can be on the EM12C server. The agent proxy is installed remotely to the monitored host side by means of "push", and the agent agent can be installed for multiple hosts at the same time. Official documents: Http://www.gokhanatil.com/2011/10/how-to-deploy-oracl
Tags: RAC nts ges ASE host Technology One height issue1. Visit Oracle Website: https://www.oracle.com/index.html, download Oracle Database 12c Release 1(Note: File1 and File2 are to be downloaded!!) Otherwise post-installation will report a bunch of errors, refer to: http://www.2cto.com/database/201503/386272.html)2. Unzip the file and copy all the folders in the
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 database2. Querying the current character setSQL>Select*fromwhere parameter='nls_ CHARACTERSET'; PARAMETER
has been strengthened again, we can not set the NOT NULL here, greatly reducing the possible error operationSee the following experimental processCREATE table T, where more than 1 million rows of data.Sql> Select COUNT (*) from T; COUNT (*)---------- 1454256Add a column directly to the table (not set NOT NULL)Sql> ALTER TABLE t add MRDAI1 number default 10000; Table altered. elapsed:00:00:00.03The speed is swift. And, of course, as in 11G.After the setting is complete, if it is a newly inser
How to install Oracle 12c in RedHat Linux 6
Step 1:
To install Oracle on RedHat Linux 6, you must install the corresponding software package before installing Oracle. In different operating system environments, the software package requirements are different. Specific corresponding software packages, see the official d
Oracle has been releasing Oracle for 12C for some time and Oracle has only 64-bit releases and no 32-bit version. Our system installation environment is CentOS 6.5 x86_64. 1. Install Oracle Dependency PackModify the Yum configuration and install 32-bit and 64-bit RPM by defa
which space is larger, I this is the/dev space is relatively large (field is mounted on), directly under this directory created# mkdir-p/dev/app/Create directory # chown-r oracle:oinstall/dev/app/Group# Chmod-r 775/dev/app Authorization7. Oarlce setting Export Tmp=/tmp Export tmpdir= $TMP Export Oracle_home=zhuvmbmf.localdomain Export ORACLE_UNQNAME=ORA12C Export Oracle_base=/dev/app Export Oracle_home= $oracle _base/product/12/ora12c E
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