Oracle logical standby vs physical standby

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August undefined, 2024

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. 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 …

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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 … WebJul 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 ... importance of pagemaker

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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 ... WebIf 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. importance of pahiyas festival

Difference between physical and logical standby database

Oracle logical standby vs physical standby

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 … 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.

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WebNow we need to remove existing physical standby database from the configuration and add the new logical standby database. DGMGRL> remove database ip7_stb; Start Logical Apply Service on standby server. On Standby ========== SQL> alter database start logical standby apply immediate; Now add the new logical standby to the broker configuration. WebJan 18, 2024 · We have two oracle 12c (same release, language..) databases replicated with Physical standby data guard configuration. When we try to convert standby database to logical with “ALTER DATABASE RECOVER TO LOGICAL STANDBY ;” command never completes. There is no error in alert log so we don’t know why it …

WebAs 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 … WebThe main difference between physical and logical standby databases is the manner in which apply services apply the archived redo data: F or physical standby databases, Oracle Data Guard uses Redo Apply technology, which applies redo data on the standby database using standard recovery techniques of an Oracle database, as shown in Figure 1-2 .

http://www.dba-oracle.com/t_difference_logical_physical_standby_database.htm 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

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 …

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 literary cat bookshopWebo 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 … importance of paid maternity leaveWebMar 20, 2013 · You cannot run any DML in a logical standby database unless you deactivate, temporary, the guard feature. To overcome you isse you can do: SQL> ALTER DATABASE GUARD NONE; SQL> SELECT GUARD_STATUS FROM V$DATABASE; GUARD_STATUS -------------------- NONE And then run your dbms_stats. Share Improve this answer Follow answered … importance of pageantsWebJan 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 … literary cat names femaleWebJan 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 … importance of pag ibig fundWeb3 rows · Jan 21, 2024 · Logical standby and physical standby database in two different types of standby database. ... importance of paid advertisingApr 10, 2024 · importance of pain control