# Extracting and synchronizing data changes using XStream mode

This scenario applies only to subscription-based Talend products.

This scenario describes a Job that inserts data into an empty source table *PERSON* in one Oracle database on which the XStream outbound server is configured, then extracts and synchronizes the data changes into an empty target table *PERSON\_BAK* in another Oracle database on which the XStream inbound server is configured using Oracle CDC XStream mode, and finally displays the data in the source and target tables on the console.

![](https://help.qlik.com/talend/en-US/components/7.2/Resources/images/components-toraclecdcoutput_s1_job.png)

Prerequisites: The Oracle database connections dedicated to the XStream outbound and inbound servers have been set up in the Repository tree view in the Studio, and the CDC has been added to the empty source and target tables. For more information about how to set up an Oracle database connection and configure CDC in Oracle XStream mode, see *Talend Studio* *User Guide*.

![](https://help.qlik.com/talend/en-US/components/7.2/Resources/images/components-toraclecdcoutput_s1_prerequisites.png)

### In this section

* [Dropping and linking the components](https://help.qlik.com/talend/en-US/components/7.2/change-data-capture/toraclecdc-toraclecdcoutput-toracleinput-toracleoutput-dropping-and-linking-components-standard-component-enterprise-create)
* [Configuring the components](https://help.qlik.com/talend/en-US/components/7.2/change-data-capture/toraclecdc-toraclecdcoutput-toracleinput-toracleoutput-configuring-components-standard-component-enterprise)
* [Saving and executing the Job](https://help.qlik.com/talend/en-US/components/7.2/change-data-capture/toraclecdc-toraclecdcoutput-toracleinput-toracleoutput-saving-and-executing-job-standard-component-enterprise-press)

**Related concepts**

[tOracleCDC](https://help.qlik.com/talend/en-US/components/7.2/change-data-capture/toraclecdc "Extracts source system data that has changed since the last extraction and transports it to another/other system(s).")

[tOracleCDCOutput](https://help.qlik.com/talend/en-US/components/7.2/change-data-capture/toraclecdcoutput "Synchronizes data changes in the Oracle XStream CDC mode.")

**Related information**

[tOracleInput](https://help.qlik.com/talend/r/en-US/7.2/components/oracle/toracleinput)

[tLogRow](https://help.qlik.com/talend/r/en-US/7.2/components/logs-and-errors/tlogrow)

[tFixedFlowInput](https://help.qlik.com/talend/r/en-US/7.2/components/tfixedflowinput/tfixedflowinput)

[tOracleOutput](https://help.qlik.com/talend/r/en-US/7.2/components/oracle/toracleoutput)