July 30, 2023

tELTOutput – Docs for ESB 7.x


Carries out the action on the table specified and inserts the data according to the
output schema defined in the ELT Mapper.

The three ELT components are closely related, in terms of
their operating conditions. These components should be used to handle DB schemas to
generate Insert statements, including clauses, which are to be executed in the DB output
table defined.

Note that it is highly recommended to use
the ELT components for a specific type of database (if any) instead of the ELT
components. For example, for Teradata, it is recommended to use the tELTTeradataInput, tELTTeradataMap and tELTTeradataOutput components instead.

tELTOutput Standard properties

These properties are used to configure tELTOutput running in the Standard Job

The Standard
tELTOutput component belongs to the ELT family.

The component in this framework is available in all Talend

Basic settings

Action on table

Select an operation to be performed on the table defined.

  • None: No operation is carried out.

  • Drop and create table: The table is removed
    and created again.

  • Create table: The table does not exist and
    gets created.

  • Create table if does not exist: The table is
    created if it does not exist.

  • Drop table if exist and create: The table is
    removed if it already exists and created again.

  • Clear table: The table content is
    deleted. You have the possibility to rollback the operation.

  • Truncate table: The table content is
    deleted. You do not have the possibility to rollback the operation.

Action on data

On the data of the table defined, you can
perform the following operation:

  • Insert: Adds new
    entries to the table. If duplicates are found, Job stops.

  • Update: Updates
    entries in the table.

  • Delete: Deletes the
    entries which correspond to the entry flow.

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 remotely stored in the Repository.

Click Edit
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


Built-in: The schema is
created and stored locally for this component only. Related topic: see
Talend Studio
User Guide


Repository: The schema
already exists and is stored in the Repository, hence can be reused. Related
topic: see
Talend Studio
User Guide

Where clauses for (for UPDATE and

Enter a clause to filter the data to be updated
or deleted during the update or delete operations.

Default Table Name

Enter the default table name, between double
quotation marks.

Default Schema Name

Enter the default schema name, between double
quotation marks.

Table name from connection name is

Select this check box when the name of the connection to this
component is set to a variable, such as a context variable.

Use different table name

Select this check box to define a different
output table name, between double quotation marks, in the Table name field which


Specify the metadata mapping file
for the database to be used. The metadata mapping file is used for the data
type conversion between database and Java. For more information about the
metadata mapping, see the related documentation for Type mapping.

Advanced settings

Use update statement without subqueries

Select this option to generate an UPDATE statement for the

This option is available when Update is selected from the
Action on data drop-down list in the Basic

Clause SET

Select the column names that will be used to generate the SET

SET clauses will not be generated for the columns that are not selected.

This field appears when Update is
selected from the Action on data drop-down list in the
Basic settings view.

tStatCatcher Statistics

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

Global Variables

Global Variables

NB_LINE: the number of rows read by an input component or
transferred to an output component. This is an After variable and it returns an

NB_LINE_INSERTED: the number of rows inserted. 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 +
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

tELTOutput is to be
used along with the tELTMap. Note that the Output link to be used with these
components must correspond strictly to the syntax of the table name.

Note that the ELT components do not handle
actual data flow but only schema information.


Avoid using any keyword for the database as the table/column
name or using any special character in the table/column name. If you want to,
you can enclose the table/column name in a pair of " to see whether it works. For example, when you want to use
the keyword number as an Oracle
database column name, you can have the Db
value in the schema editor set to "number". But note that this solution does
not always work.

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