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Streams Sample Code: Hub & Spoke Configuration between Three Sites with Synchronous Capture (Doc ID 1081226.1)

Last updated on JANUARY 23, 2024

Applies to:

Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Standard Edition - Version 11.1.0.6 to 11.2.0.2.0 [Release 11.1 to 11.2]
Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.2.0 [Release 11.1 to 11.2]
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.
Oracle Server - Version: 11.1.0.6 to 11.2.x.x
 




Goal

Synchronous Capture is a new streams feature introduced in release 11g. 

For environments that do not support redo-based capture, -such as the Standard Edition of the database, it is possible to capture changes as part of the user transaction activity.
This form of capture is known as Synchronous Capture because the capture is simultaneous with, ie at the same time as,the user transaction. It uses an efficient internal mechanism
to capture the changes and store them persistently on disk, in a queue. 

Refer to the Oracle Documentation for more information regarding Synchronous Capture; the reference manual provides in depth details on Synchronous Capture, how to configure/monitor/manage it and restrictions: 

Oracle Streams Concepts and Administration 11g Release 2 (11.2)
Introduction to Synchronous Capture 

Solution

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In this Document
Goal
Solution
 Requirements
 Configuring
 Instructions
 Sample Code
 Sample Output
References

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