Solved

What are the differences between logical and physical standby databases?

Posted on 2013-02-06
2
687 Views
Last Modified: 2013-02-06
I've built out a logical standby database before with the help of a team mate so I never fully understood the concept of the logical vs physical standby. What are the main differences? When building one out what are the different steps? I remeber there was a step to convert from logical to physical but entirely sure.

THANKS!
0
Comment
Question by:themeeper1
2 Comments
 
LVL 34

Expert Comment

by:johnsone
ID: 38860898
The main difference is that a physical standby is a block for block copy of the primary database.  Changes are applied at the block level.  Logical standby is a copy of the data from the primary.  Changes are applied by running equivalent SQL statements.
0
 
LVL 76

Accepted Solution

by:
slightwv (䄆 Netminder) earned 500 total points
ID: 38860970
johnsone has stated it quite well.

I just wanted to offer up the doc link.  The online docs typically have everything you need:
http://docs.oracle.com/cd/E11882_01/server.112/e25608/standby.htm#i72627
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Oracle 12c patching 1 85
selective queries 7 30
Oracle Verification of DataPump Export and Import 17 56
form builder not starting 3 36
Note: this article covers simple compression. Oracle introduced in version 11g release 2 a new feature called Advanced Compression which is not covered here. General principle of Oracle compression Oracle compression is a way of reducing the d…
How to Create User-Defined Aggregates in Oracle Before we begin creating these things, what are user-defined aggregates?  They are a feature introduced in Oracle 9i that allows a developer to create his or her own functions like "SUM", "AVG", and…
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
This video shows how to Export data from an Oracle database using the Datapump Export Utility.  The corresponding Datapump Import utility is also discussed and demonstrated.

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question