August 15, 2023

tGreenplumOutputBulk – Docs for ESB 6.x

tGreenplumOutputBulk

Prepares the file to be used as parameter in the INSERT query to
feed the Greenplum database.

The tGreenplumOutputBulk and tGreenplumBulkExec components are used together in a two step process.
In the first step, an output file is generated. In the second step, this file is used in
the INSERT operation used to feed a database. These two steps are fused together in the
tGreenplumOutputBulkExec component, detailed in a
separate section. The advantage of using a two step process is that it makes it possible
to transform data before it is loaded in the database.

Writes a file with columns based on the defined delimiter and the
Greenplum standards

tGreenplumOutputBulk Standard properties

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

The Standard
tGreenplumOutputBulk component belongs to the Databases family.

The component in this framework is generally available.

Basic settings

Property type

Either Built-in or Repository
.

 

Built-in: No property data stored
centrally.

 

Repository: Select the repository
file in which the properties are stored. The fields that follow are
completed automatically using the data retrieved.

File Name

Name of the file to be generated.

Warning:

This file is generated on the local machine or a shared folder
on the LAN.

Append

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

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.
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.

Advanced settings

Row separator

String (ex: ”
“on Unix) to distinguish rows.

Field separator

Character, string or regular expression to separate fields.

Include header

Select this check to include the column header.

Encoding

Select the encoding from the list or select Custom and define it manually. This field is
compulsory for DB data handling.

tStatCatcher statistics

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

Global Variables

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

Usage rule

This component is to be used along with tGreenplumBulkExec component. Used together they
offer gains in performance while feeding a Greenplum
database.

Component family

Databases/Greenplum

Related scenarios

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


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