Select a type of database from the list and click
Apply.

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.

DB Version

MySQL 5 is available.

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.

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.

Table

Name of the table to be written. Note that only one table can be
written at a time

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.

Truncate table: The table content
is quickly deleted. However, you will not be able to rollback the
operation.

Action on data

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

Insert: Add new entries to the
table. If duplicates are found, the job stops.

Update: Make changes to existing
entries.

Insert or update: Insert a new record. If
the record with the given reference already exists, an update would be made.

Update or insert: Update the record with the
given reference. If the record does not exist, a new record would be inserted.

Delete: Remove entries
corresponding to the input flow.

Replace: Add new entries to the
table. If an old row in the table has the same value as a new row
for a PRIMARY KEY or a UNIQUE index, the old row is deleted before
the new row is inserted.

Insert or update on duplicate key or unique
index: Add entries if the inserted value does not
exist or update entries if the inserted value already exists and
there is a risk of violating a unique index or primary key.

Insert Ignore: Add only new rows to
prevent duplicate key errors.

Schema and Edit
schema

A schema is a row description, i.e. 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.

This
component offers the advantage of the dynamic schema feature. This allows you to
retrieve unknown columns from source files or to copy batches of columns from a source
without mapping each column individually. For further information about dynamic schemas,
see
Talend Studio

User Guide.

This
dynamic schema feature is designed for the purpose of retrieving unknown columns of a
table and is recommended to be used for this purpose only; it is not recommended for the
use of creating tables.

Built-In: You create and store the schema locally for this component
only.

Repository: You have already created the schema and stored it in the
Repository. You can reuse it in various projects and Job designs.

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).

Die on error

This check box is selected by default. Clear the check box to skip
the row in error and complete the process for error-free rows. If
needed, you can retrieve the rows in error via a Row > Rejects link.

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.

Extend Insert

Select this check box to carry out a bulk insert of a defined set
of lines instead of inserting lines one by one. The gain in system
performance is considerable.

Number of rows per insert: enter
the number of rows to be inserted per operation. Note that the
higher the value specidied, the lower performance levels shall be
due to the increase in memory demands.

Use Batch

Select this check box to activate the batch mode for data processing.

Batch Size

Specify the number of records to be processed in each batch.

This field appears only when the Use batch mode
check box is selected.

Commit every

Number of rows to be included in the batch before it is committed
to the DB. This option ensures transaction quality (but not
rollback) and, above all, a higher performance level.

Additional Columns

This option is not available if you have just created the DB table
(even if you delete it beforehand). This option allows you to call
SQL functions to perform actions on columns, provided that these are
not insert, update or delete actions, or actions that require
pre-processing.

Name: Type in the name of the
schema column to be altered or inserted.

SQL expression: Type in the SQL
statement to be executed in order to alter or insert the data in the
corrsponding column.

Position: Select Before, Replace or After,
depending on the action to be performed on the reference
column.

Reference column: Type in a
reference column that
tAmazonMysqlOutput can use to locate or replace the
new column, or the column to be modified.

Use field options

Select this check box to customize a request, particularly if
multiple actions are being carried out on the data.

Use Hint Options

Select this check box to activate the hint configuration area
which helps you optimize a query’s execution. In this area,
parameters are:

– SQL STMT: select the SQL
statement you need to use.

Debug query mode

Select this check box to display each step during processing entries
in a database.

Use duplicate key update mode insert

Updates the values of the columns specified, in the event of
duplicate primary keys.:

Column: Between double quotation
marks, enter the name of the column to be updated.

Value: Enter the action you want to
carry out on the column.

tStatCatcher Statistics

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

Enable parallel execution

Note that when parallel execution is enabled, it is not possible to use global
variables to retrieve return values in a subjob.

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
integer.

NB_LINE_UPDATED: the number of rows updated. This is an
After variable and it returns an integer.

NB_LINE_INSERTED: the number of rows inserted. This is an
After variable and it returns an integer.

NB_LINE_DELETED: the number of rows deleted. This is an
After variable and it returns an integer.

NB_LINE_REJECTED: the number of rows rejected. This is an
After variable and it returns an integer.

QUERY: the query statement processed. This is an After
variable and it returns a string.

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 rule

This component offers the flexibility benefit of the DB query and
covers all of the SQL queries possible.

This component must be used as an output component. It allows you
to carry out actions on a table or on the data of a table in a MySQL
database. It also allows you to create a reject flow using a
Row > Rejects link to filter
data in error. For an example of tAmazonMysqlOutput in use, see .

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 examples on using dynamic parameters, see Reading data from databases through context-based dynamic connections and Reading data from different MySQL databases using dynamically loaded connection parameters. For more information on Dynamic
settings and context variables, see Talend Studio
User Guide.