tPostgresqlRollback

Avoids to commit part of a transaction involuntarily.

The tPostgresqlRollback cancels the transaction commit
in the connected DB.

tPostgresqlRollback Standard properties

These properties are used to configure tPostgresqlRollback running in the Standard Job framework.

The Standard
tPostgresqlRollback component belongs to the Databases family.

The component in this framework is available in all Talend
products.

Note: This component is a specific version of a dynamic database
connector. The properties related to database settings vary depending on your database
type selection. For more information about dynamic database connectors, see Dynamic database components.

Basic settings

Database	Select a type of database from the list and click Apply.
Component list	Select the tPostgresqlConnection component in the list if more than one connection are planned for the current Job.
Close Connection	Clear this check box to continue to use the selected connection once the component has performed its task.

Advanced settings

tStat Catcher Statistics	Select this check box to collect log data at the component level.
Enable parallel execution	Select this check box to perform high-speed data processing, by treating multiple data flows simultaneously. Note that this feature depends on the database or the application ability to handle multiple inserts in parallel as well as the number of CPU affected. In the Number of parallel executions field, either: Enter the number of parallel executions desired. Press Ctrl + Space and select the appropriate context variable from the list. For further information, see Talend Studio User Guide. Note that when parallel execution is enabled, it is not possible to use global variables to retrieve return values in a subjob. The Action on table field is not available with the parallelization function. Therefore, you must use a tCreateTable component if you want to create a table. When parallel execution is enabled, it is not possible to use global variables to retrieve return values in a subjob.

tStat
Catcher
Statistics

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

Enable parallel execution

Select this check box to perform high-speed data processing, by treating
multiple data flows simultaneously. Note that this feature depends on the database or
the application ability to handle multiple inserts in parallel as well as the number of
CPU affected. In the Number of parallel executions
field, either:

Enter the number of parallel executions desired.
Press Ctrl + Space and select the
appropriate context variable from the list. For further information, see
Talend Studio User Guide.

Note that when parallel execution is enabled, it is not possible to use global
variables to retrieve return values in a subjob.

The Action on
table field is not available with the
parallelization function. Therefore, you must use a tCreateTable component if you
want to create a table.
When parallel execution is enabled, it is not
possible to use global variables to retrieve return values in a
subjob.

Usage

Usage rule	This component is more commonly used with other tPostgresql* components, especially with the tPostgresqlConnection and tPostgresqlCommit components.
Dynamic settings	Click the [+] button to add a row in the table and fill the Code field with a context variable to choose your database connection dynamically from multiple connections planned in your Job. This feature is useful when you need to access database tables having the same data structure but in different databases, especially when you are working in an environment where you cannot change your Job settings, for example, when your Job has to be deployed and executed independent of Talend Studio. Once a dynamic parameter is defined, the Component List box in the Basic settings view becomes unusable. For examples on using dynamic parameters, see Reading data from databases through context-based dynamic connections and Reading data from different MySQL databases using dynamically loaded connection parameters. For more information on Dynamic settings and context variables, see Talend Studio User Guide.

Usage rule

This component is more commonly used with other tPostgresql*
components, especially with the tPostgresqlConnection and tPostgresqlCommit components.

Dynamic settings

Click the [+] button to add a row in the table
and fill the Code field with a context
variable to choose your database connection dynamically from multiple
connections planned in your Job. This feature is useful when you need to
access database tables having the same data structure but in different
databases, especially when you are working in an environment where you
cannot change your Job settings, for example, when your Job has to be
deployed and executed independent of Talend Studio.

Once a dynamic parameter is defined, the Component List box in the Basic
settings view becomes unusable.

For examples on using dynamic parameters, see Reading data from databases through context-based dynamic connections and Reading data from different MySQL databases using dynamically loaded connection parameters. For more information on Dynamic
settings and context variables, see Talend Studio
User Guide.

Related scenario

For tPostgresqlRollback related scenario, see tMysqlRollback

Document get from Talend https://help.talend.com

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Docs 7.x

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tPostgresqlRollback – Docs for ESB 7.x

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