August 17, 2023

tMysqlBulkExec – Docs for ESB 5.x

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tMysqlBulkExec

tMysqlBulkExec_icon32_white.png

tMysqlBulkExec 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, detailed in a
separate section. The advantage of using two separate steps is that the data can be
transformed before it is loaded in the database.

Component family

Databases/Mysql

  

Function

Executes the Insert action on the data provided.

Purpose

As a dedicated component, tMysqlBulkExec offers gains in performance while
carrying out the Insert operations to a Mysql database

Basic settings

Property type

Either Built-in or
Repository.

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
centrally.

 

 

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 My SQL that you are using.

 

Use an existing connection

Select this check box and in the Component List click the
relevant connection component to reuse the connection details you already defined.

Note

When a Job contains the parent Job and the child Job, if you need to share an existing
connection between the two levels, for example, to share the connection created by the
parent Job with the child Job, you have to:

  1. In the parent level, register the database connection to be shared in the
    Basic settings view of the connection
    component which creates that very database connection.

  2. In the child level, use a dedicated connection component to read that
    registered database connection.

For an example about how to share a database connection across Job levels, see
Talend Studio User
Guide.

 

Host

Database server IP address

 

Port

Listening port number of DB server.

 

Database

Name of the database

 

Username and
Password

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.

 

Action on table

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

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

Drop table if exists 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.

 

Table

Name of the table to be written. Note that only one table can be
written at a time and that the table must exist for the insert
operation to succeed.

 

Local file Name

Name of the file to be loaded.

This file should be located on the same machine where the Studio
is installed or where the Job using tMysqlBulkExec is deployed.

 

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 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
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.

 

 

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 https://help.talend.com/display/KB/Verifying+default+values+in+a+retrieved+schema.

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
settings.

 

Lines terminated by

Character or sequence of characters used to separate lines.

 

Fields terminated by

Character, string or regular expression to separate fields.

 

Enclosed by

Character used to enclose text.

 

Action on data

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

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 ones. Ignore records
in table: Ignore the existing records, or insert the
new ones.

 

Records contain NULL value

Check this box if you want to retrieve the null values from the
input data flow. If you do not check this box, the null values from
the input data flow will be considered as empty fields in the output
data flow.

 

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.

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.

The Dynamic settings table is available only when the
Use an existing connection check box is selected in the
Basic settings view. Once a dynamic parameter is
defined, the Component List box in the Basic settings view becomes unusable.

For more information on Dynamic settings and context
variables, see Talend Studio User Guide.

Usage

This component is to be used along with tMysqlOutputBulk component. Used together, they can
offer gains in performance while feeding a Mysql database.

Log4j

The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User
Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.

Limitation

Due to license incompatibility, one or more JARs required to use this component are not
provided. You can install the missing JARs for this particular component by clicking the
Install button on the Component tab view. You can also find out and add all missing JARs easily on
the Modules tab in the Integration perspective
of your studio. For details, see https://help.talend.com/display/KB/How+to+install+external+modules+in+the+Talend+products
or the section describing how to configure the Studio in the Talend Installation and Upgrade
Guide.
Document get from Talend https://help.talend.com
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Docs 5.x
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