Oracle RAC clusterRAC, short for real application clusters, is a new technology used in the new version of Oracle Database,
It is a type of high availability and the core technology that Oracle databases support the grid computing environment.
An
Migrate uard to a single machine in RAC Environment
Environment Description:
Oracle Version: 11.2.0.3.0Primary end:For dual-node RAC, scan uses DNS resolution to run two instances (JSTDB & PAYDB)Standby end:Standalone Federation uard
1. Set the
There are several solutions: the first one. restart the server to fix the listener. log on to the database, sqlplus/As sysdba; SQL> shudownsql> startup # startup start # shutdown to close # LSNRCTL stop to close the service, execute close listener #
Oracle TNS Brief
What is TNS?TNS is part of Oracle NET, dedicated to managing and configuring Oracle databases and client connections, and in most cases the client and the database must be configured with TNS, and of course, in a few cases, the
--Test environment:Os:redhat Linux (64)Primary:ip:192.168.94.198Sid:dgdb1Hostname:dg1Db_unique_name:dgdb1database:10.2.0.1 (64)Standby:ip:192.168.94.199Sid:dgdb1Hostname:dg2db_unique_name:dgdb1_sdatabase:10.2.0.1 (64)--Preparation before DG
oracle11g R2 "Rac+asm→rac+asm"Environment used in this demo case: RAC+ASM+OMF
Primary
Standby
OS Hostname
Node1,node2
Dgnode1,dgnode2
OS Version
RHEL6.5
RHEL6.5
oracle10g R2 "Rac+asm→rac+asm"Environment used in this demo case: RAC+ASM+OMF
Primary
Standby
OS Hostname
Node1,node2
Dgnode1,dgnode2
OS Version
RHEL5.8
RHEL5.8
ObjectiveGoldengate again RAC environment deployment, and single-machine deployment difference is still a bit large, mainly exist in the environment.Environmentoracle10g, Sid=racPreparatory work1. On the RAC node, configure the listener dynamic
First, switch the RAC to archive mode 1. Modify the archive mode of the database, usually in the installation of the RAC will be configured to archive and use the Flash back zone, has been configured in the following way can be skipped.Sql> alter
Recent work requires Oracle-based connectivity to SQLserver2014, and we can implement this by configuring the gateway. The essence of this gateway is achieved through Dblink. That is, SQL Server is modeled as a remote Oracle instance, which is
Test environment
SOURCE Environment
Target Environment
Host operating system Oracle Linux 7.2Host name ZhankysOracle version 11.2.0.1 x64ip:172.16.171.214Cdb=orclThe cloned PDB=ORCL1
Host operating system Oracle
12c has launched a pluggable database with multiple database PDB in the form of multiple tenants in a single container cdb. The data pump import and export for the PDB is slightly different from the traditional database.1, need to add tansnames for
Oracle Network ConfigurationThree configuration Files Listener.ora, Sqlnet.ora, Tnsnames.ora, are placed in the $oracle_home\network\admin directory.1. Sqlnet.ora-----function similar to Linux or other Unix nsswitch.conf files, this file to
During the installation of Oracle10g RAC, it is extremely important to exercise caution when setting the network.The following lists the network configurations of my Oracle10g RAC environment for your reference.1. settings of the hosts fileBecause
The ORACLE tutorial is to solve the connection problem in the Oracle network structure. I have recently seen many people talking about issues such as tns or the inability to log on to the database. I simply summarized the following documents. First,
The OracleRAC Listener Configuration is slightly different from that of a single instance, but its principles and implementation methods are basically the same. In Oracle, the tns process is used to specify one or more network addresses.
The
IC introduction many people are using OracleInstantClient, which provides an easy and fast way to deploy applications based on OCI, OCCI, and JDBCOCI. By adding more tools, InstantClient can become a more powerful tool, as follows: 1.
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