August 16, 2023

tVerticaOutputBulk – Docs for ESB 6.x

tVerticaOutputBulk

Prepares a file to be used by the tVerticaBulkExec component to
feed a Vertica database.

The tVerticaOutputBulk
component and the tVerticaBulkExec component are generally used together as
parts of a two step process. In the first step, an output file is generated. In the second
step, the file is used in a bulk load operation to feed a database. These two steps are fused
together in the tVerticaOutputBulkExec component. The advantage of using
two separate components is that the data can be transformed before it is loaded into the
database.

tVerticaOutputBulk Standard properties

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

The Standard
tVerticaOutputBulk component belongs to the Databases family.

The component in this framework is generally available.

Basic settings

Property Type

Select the way the file path and the schema will be set.

  • Built-In: The file path and the schema will be
    set locally for this component.

  • Repository: The file details stored centrally
    in Repository > Metadata will be reused by this component. You need to click
    the […] button next to it and in the pop-up
    Repository Content dialog box, select the
    file to be reused, and all related properties will be automatically
    filled in.

File Name

The path to the file to be generated.

This file is generated on the same machine where your Studio is installed or where your
Job using this component is deployed.

Append

Select this check box to add new rows at the end of the file.

Schema and Edit schema

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

  • Built-In: You create and store the
    schema locally for this component only. Related topic: see
    Talend Studio

    User Guide.

  • Repository: You have already created
    the schema and stored it in the Repository. You can reuse it in various projects and
    Job designs. Related topic: see
    Talend Studio

    User Guide.

When the schema to be reused has default values that are integers or
functions, ensure that these default values are not enclosed within quotation marks. If
they are, you must remove the quotation marks manually.

You can find more details about how to verify default
values in retrieved schema in Talend Help Center (https://help.talend.com).

Click Edit schema to make changes to the
schema. Note that if you make changes, the schema automatically becomes built-in.

  • 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.

Advanced settings

Row Separator

The separator used to identify the end of a row.

Include Header

Select this check box to include the column header to the file.

Encoding

Select an encoding method from the list, or select
CUSTOM and define it manually. This field is
compulsory for database data handling.

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at the Job level
as well as at each 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.

Usage

Usage rule

This component is more commonly used with the tVerticaBulkExec component. Used together, they
offer gains in performance while feeding a Vertica database.

Talend Studio and the
Vertica database create very fast and affordable data warehouse and data mart applications.
For more information about how to configure
Talend Studio
to connect to Vertica, see Talend and HP Vertica Tips and
Techniques
.

Related scenarios

For use cases in relation with tVerticaOutputBulk,
see the following scenarios:


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