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.

DB Version

Select the SAP Hana Database (HDB) version you are using.

Host

Database server IP address.

Port

Listening port number of database server.

Schema

Name of the database schema.

Username and Password

Database 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.

Schema and Edit
Schema

A schema is a row description. It defines the number of fields (columns) to
be processed and passed on to the next component. The schema is either Built-In or stored remotely in the Repository.

Built-in: The schema is created
and stored locally for this component only. For more information,
see
Talend Studio User
Guide.

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

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.

Table Name

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

Query Type

Either Built-in or Repository
.

Built-in: Fill in manually the
query statement or build it graphically using SQLBuilder.

Repository: Select the relevant
query stored in the Repository. The Query field gets accordingly
filled in.

Guess Query

Click the Guess Query button to
generate the query which corresponds to your table schema in the
Query field.

Guess schema

Click the Guess schema button to
retrieve the table schema.

Query

Enter your database query paying particularly attention to
properly sequence the fields in order to match the schema
definition.

Additional JDBC Parameters

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

Trim all the String/Char columns

Select this check box to remove leading and trailing whitespaces
from all the String/Char columns.

Trim column

tStatCatcher Statistics

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

Global Variables

NB_LINE: the number of rows processed. This is an After
variable and it returns an integer.

QUERY: the query statement being processed. This is a Flow
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 is standalone as it includes the SAP Hana engine.
This is a startable component that can initiate a data flow
processing.

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 Scenario: Reading data from databases through context-based dynamic connections and Scenario: 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.