Oracle logical standby vs physical standby

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August undefined, 2024

Weba physical standby database, the transient logical standby process uses SQL Apply to take redo generated by a database running a lower Oracle release, and apply the redo to a standby database running a higher Oracle release. When the upgrade process is complete, both the primary database and its physical standby database are WebFeb 12, 2014 · Logical Standby behaves similarly to physical standby, except it uses a more complex method of applying SQL statements (logical) instead of block level redo changes (physical). While It is rarely used as a protection mechanism for a primary database it is common to use logical standby as a reporting database.

Physical vs Logical standby database - Oracle Forums

WebAug 21, 2009 · Using Oracle 11g’s Active Data Guard and Snapshot Standby Features By August 21, 2009 Synopsis. Oracle Database 11g expands dramatically the ability to leverage a physical standby database for simultaneous support of both disaster recovery as well as intensive query activity. WebOct 14, 2024 · Oracle Database - Enterprise Edition - Version 12.2.0.1 and later: Convert From Physical Standby To Logical hangs ALTER DATABASE RECOVER TO LOGICAL STANDBY bishop investors

Using Oracle 11g’s Active Data Guard and Snapshot Standby …

WebNov 21, 2024 · Neither a logical standby database or a snapshot standby database can forward redo to another standby database. In 11.2 when a cascaded destination is … WebDec 18, 2012 · 1- Physical Standby Database Its exactly same As Primary Database. 2- In Physical Data Guard The archivelog Applied directly after transfer from primary database … WebReal-time apply is described in more detail in Section 7.2.1. Apply services use the following methods to maintain physical and logical standby databases: Redo Apply (physical standby databases only) Uses media recovery to keep the primary and physical standby databases synchronized. SQL Apply (logical standby databases only) Reconstitutes SQL ... dark matter post workout gnc

Creating a Logical Standby Database - Oracle Help Center

WebJan 22, 2009 · a physical standby database must have homogeneous versions. Think about it - the second you upgrade one of them - the other is immediately upgraded data … WebAug 28, 2013 · My steps for testing as below: 1.create a primary database 2.duplicate a physical standby database; 3.turn on flashback on both databases. 4.record SCN xxx on physical standby database. 5.convert physical standby to logical standby (using keep identity statement) 6.flashback to logical standby to xxx 7.convert logical standby to … bishop iona locke 2020WebJul 24, 2012 · Yes. A physical Standby can be open for Read-only, but a logical offers additional options for writing. You cannot write to a Physical Standby since this would put it out of sync with the Primary. What business issue are you trying to solve? ( besides reporting ) Generally I believe a Physical Standby is easier to maintain, but logical has some ... bishop iot

"Web3 rows · Jan 21, 2024 · Logical standby and physical standby database in two different types of standby database. ... " - Oracle logical standby vs physical standby

Oracle logical standby vs physical standby

2 Getting Started with Data Guard - Oracle

WebApr 5, 2015 · Start up your physical standyby database with NOMOUNT-Option SQL> startup nomount; Now switch to your primary database environment. Start your rman on you primary envoronment: $> rman target / auxiliary sys@Dataguard_instance Dataguard_instance must be substituted with your DataGuard instance name. WebYou have two servers (physical or VMs) with an operating system and Oracle installed on them. In this case I've used Oracle Linux 5.6 and Oracle Database 11.2.0.2. The primary server has a running instance. The standby server has a software only installation. Primary Server Setup Logging Check that the primary database is in archivelog mode.

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WebJan 4, 2024 · 1.Physical standby. 2.Snapshot standby. 3.Logical standby. Question 1 : 1.Database can be converted to physical standby only form the mount state ? 2.Meaning of the below command ? --alter database recover managed standby database using current logfile disconnect; 3.the below command meaning is , database will be altered to mount … WebLogical standby is different from physical standby: Logical standby database does not have to match the schema structure of the source database. Logical standby uses LogMiner …

WebAug 19, 2009 · physical standby and logical standby user3266490 Aug 19 2009 — edited Aug 21 2009 Hi, Why we mention standby_archive_dest and log_archive_Dest in standby … WebJan 18, 2008 · A physical standby database can be used for business purposes other than disaster recovery on a limited basis. Logical standby database Contains the same logical …

WebA logical standby database provides similar disaster recovery, high availability, and data protection benefits as a physical standby database. It also provides the following specialized benefits: Efficient use of standby hardware resources WebRMAN & Logical Standby • Logical standby is an independent database • Backups must be taken separately • When using catalog, GUARDmust be set to STANDBY • Take control file …

WebA standby database (logical or physical) can be used as a reporting instance (run reports). ... I have setup a simple physical standby database using Oracle 9.2.0.5. My primary …

WebNov 3, 2006 · create cascading standby. 408579 Nov 3 2006 — edited Nov 3 2006. Hi all, Any one have experience with creating a cascading logical standby? Currently we have a primary and a physical standby databases. We want create another logical standby which will be receiving archive logs from the existing standby to reduce the overhead on production. My … dark matter reactor qserfWebJun 21, 2008 · Physical vs Logical standby database. If I run have two systems i.e a Primary System and a Logical standby database system , is it not sufficient protection ? If the … bishop iona locke prayingWebAs of Oracle Database 11 g Release 1 (11.1), a physical standby database can receive and apply redo while it is open for read-only access. A physical standby database can … dark matter new seasonhttp://www.dba-oracle.com/t_difference_logical_physical_standby_database.htm dark matter radio showWebAug 26, 2024 · In physical standby dataguard environment, the V$DATABASE.STANDBY_BECAME_PRIMARY_SCN can be used to find the SCN at which … dark matter raza ship layoutWebIf the selected standby database was configured as a physical standby database or a logical standby database If the role transition is a switchover or a failover The goal is to perform the role transition as quickly as possible with little or no data loss. bishop iona locke ministriesWebo When adding a logical standby database for the first time to an existing configuration, you must enable supplemental logging on all existing physical standby databases in the … dark matter physics