August 17, 2023

tMysqlOutputBulkExec – Docs for ESB 5.x



tMysqlOutputBulkExec properties

The tMysqlOutputBulk and tMysqlBulkExec 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 statement used to feed a database. These two steps are fused together in the
tMysqlOutputBulkExec component.

Component family




Executes the Insert action on the data provided.


As a dedicated component, it improves performance during Insert
operations to a MySQL database.

Basic settings

Property type

Either Built-in or

Since version 5.6, both the Built-In mode and the Repository mode are
available in any of the Talend solutions.



Built-in: No property data stored



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


DB Version

Select the version of MySQL that you are using.



Database server IP address



Listening port number of DB server.



Name of the database


Username and

DB user authentication data.

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.


tCreateTable can be used as a substitute for
this function.

Action on table

On the table defined, you can perform one of the following

None: No operation is carried

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

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

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

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

Clear table: The table content is



Name of the table to be written.


Note that only one table can be written at a time and that the
table must already exist for the insert operation to


Local FileName

Name of the file to be generated and loaded.

This file is generated on the same machine where the Studio is
installed or where the Job using tMysqlOutputBulkExec is deployed. Then it is loaded
to the database specified by Host



Select the check box for this option to append new rows to the end
of the file.


Schema and Edit

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.

Since version 5.6, both the Built-In mode and the Repository mode are
available in any of the Talend solutions.

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

  • 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

  • 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



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.

For more details, see

Advanced settings

Additional JDBC parameters

Specify additional connection properties for the DB connection you
are creating. This option is not available if you have selected the
Use an existing connection
check box in the Basic


You can press Ctrl+Space to
access a list of predefined global variables.


Row separator

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


Field separator

Character, string or regular expression to separate fields.


Escape char

Character of the row to be escaped


Text enclosure

Character used to enclose the text.


Create directory if does not exist

This check box is selected by default. It creates a directory to
hold the output table if required.


Custom the flush buffer size

Customize the amount of memory used to temporarily store output
data. In the Row number field,
enter the number of rows after which the memory is to be freed


Action on data

On the data of the table defined, you can carry out the following

Insert records in table: Add new
records to the table.

Update records in table: Make
changes to existing records.

Replace records in table: Replace
existing records with new one. Ignore records
in table:
Ignore existing records or insert the new


Records contain NULL value

This check box is selected by default. It allows you to take
account of NULL value fields. If you clear the check box, the NULL
values will automatically be replaced with empty values.



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 the log data at the component


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


  • 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.


This component is mainly used when no particular transformation is
required on the data to be loaded onto the database.



Scenario: Inserting data in MySQL database

This scenario describes a two-component Job which carries out the same operation as
the one described for tMysqlOutputBulk properties and tMysqlBulkExec properties,
although no data is transformed.

  • Drop a tRowGenerator and a tMysqlOutputBulkExec component from the Palette to the design workspace.

  • Connect the components using a link such as Row >

  • Set the tRowGenerator parameters the same
    way as in Scenario: Inserting transformed data in MySQL database. The schema is made of four columns
    including: ID, First Name,
    Last Name, Address and

  • In the workspace, double-click the tMysqlOutputBulkExec to display the Component view and set the properties.

  • Define the database connection details in the corresponding fields, if
    necessary. Consult the recommendations detailed in Scenario: Inserting transformed data in MySQL database,
    concerning the conservation of connection details in the Repository, under the Metadata
    node. In the component view, select Repository
    in the Property Type field and then select the
    appropriate connection in the adjacent field. The following fields will be
    filled in automatically.

For further information, see Talend Studio
User Guide.

  • In the Action on table field, select the
    None option as you want to insert the data
    into a table which already exists.

  • In the Table field, enter the name of the
    table you want to populate, the name being clients in this

  • In the Local filename field, indicate the
    access path and the name of the file which contains the data to be added to the
    table. In this example, the file is clients.txt.

  • Click on the Advanced settings tab to define
    the component’s advanced parameters.

  • In the Action on data list, select the
    Insert records in table to insert the new
    data in the table.

  • Press F6 to run the Job.

The result should be pretty much the same as in Scenario: Inserting transformed data in MySQL database, but the
data might differ as these are regenerated randomly everytime the Job is run.

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