tJDBCConnection – Docs for ESB 5.x

Component family

Databases/JDBC

Function

Opens a connection to the database for a current
transaction.

Purpose

This component is used to open a connection to the specified database that can then be reused in the subsequent subjob or subjobs.

Basic settings

JDBC URL

Enter the JDBC URL to connect to the desired DB. For example,
enter: jdbc:mysql://IP address/database name to
connect to a mysql database.

Driver JAR

Click the plus button under the table to add lines of the count of
your need for the purpose of loading several JARs. Then on each
line, click the three dot button to open the [Select Module] wizard from which you can select a
driver JAR of your interest for each line.

Driver Class

Enter the driver class related o your connection. For example,
enter com.mysql.jdbc.Driver as a driver class
to connect to a mysql database.

Username and
Password

Enter your DB 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.

Use or register a shared DB Connection

Select this check box to share your connection or fetch a
connection shared by a parent or child Job. This allows you to share
one single DB connection among several DB connection components from
different Job levels that can be either parent or child.

Shared DB Connection Name: set or
type in the shared connection name.

Select this check box and specify the alias of a data source created on the Talend Runtime side to use the shared connection pool defined in the data source configuration.
This option works only when you deploy and run your Job in Talend Runtime.

Advanced settings

Use Auto-Commit

Select this check box to display the Auto
Commit check box. Select it to activate auto commit
mode.

Once you clear the Use
Auto-Commit check box, the auto-commit statement will
be removed from the codes.

Auto Commit

Select this check box to commit any changes to the database automatically upon the
transaction.

With this check box selected, you cannot use the corresponding commit component to commit
changes to the database; likewise, when using the corresponding commit component, this check
box has to be cleared. By default, the auto commit function is disabled and changes must be
committed explicitly using the corresponding commit component.

Note that the auto commit function commits each SQL statement as a single transaction
immediately after the statement is executed while the commit component does not commit only
until all of the statements are executed. For this reason, if you need more room to manage
your transactions in a Job, it is recommended to use the commit component.

tStatCatcher Statistics

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

Usage

This component is more commonly used with other tJDBC* components,
especially with the tJDBCCommit and
tJDBCRollback
components.

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

n/a