tOracleCDCOutput Standard properties

Select a type of database from the list and click Apply.

Property of the CDC connection

Either Built-in or Repository.

Built-In: You create and store the schema locally for this component only.

Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs.

Use an existing connection

Select this check box and in the Component List drop-down list, select the desired connection component to reuse the connection details you already defined.

Note that connections that are of WALLET type are for the tCreateTable component, the tOracleInput component, and the tOracleOutput component only. Make sure that the connection selected is not of the WALLET type to prevent possible errors.

DB Version

Select the version of the Oracle database being used.

Local Service Name

Specify the local service name of the Oracle database.

Oracle schema

Specify the name of the Oracle schema.

Username and Password

Specify the user authentication data of the Oracle database.

To enter the password, click the [...] button next to the password field, and then in the pop-up dialog box enter the password between double quotes and click OK to save the settings.

Schema and Edit schema

A schema is a row description, it defines the number of fields to be processed and passed on to the next component. The schema is either Built-in or stored remotely in the Repository.

Click Edit schema to make changes to the schema. If the current schema is of the Repository type, three options are available:

• View schema: choose this option to view the schema only.

• Change to built-in property: choose this option to change the schema to Built-in for local changes.

• Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion. If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the Repository Content window.

Built-In: You create and store the schema locally for this component only.

Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs.

Input field

Select an input field from the drop-down list.

Inbound server name

Specify the XStream inbound server name.

Set data table schema

Select this check box to specify the schema of the CDC table.

Set target table

Select this check box to specify the table to which data changes from the inbound server will be replicated.

Acknowledge interval(seconds)

Specify the value for the OCI_ATTR_XSTREAM_ACK_INTERVAL attribute for the inbound server. The default value is 30 seconds.

For more information about this attribute, see http://docs.oracle.com/cd/E18283_01/server.112/e16545/xstrm_oci_intro.htm#CEGDICBB.

tStatCatcher Statistics

Select this check box to collect the log data at component level.

Global Variables 

NB_LINE: the number of rows processed. This is an After variable and it returns an integer.

ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl + Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio User Guide.

Usage rule

This component is used as an output component. It requires an input component and Row > Main link as input.