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

Validation type

Either Regex pattern validation
or DQ rule validation.

Regex pattern validation:
Validate data in the database against regex patterns.

DQ rule validation: Validate data
in the database against DQ rules.

Property type

Either Built-in or Repository.

Built-in: No property data stored
centrally.

Repository: Select the repository
file where Properties are stored. The fields that come after are
pre-filled in using the fetched data.

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.

Connection Type

DB Version

Host

Database server IP address.

Port

Listening port number of DB server.

Database

Name of the database.

Oracle schema

Name of the Oracle schema.

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.

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.

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 and thus reuse it
when needed. Related topic: see
Talend Studio User
Guide.

Table Name

Enter the name of the table to be read.

Where clause

Enter a WHERE clause to define a row filter on the table.

You can use the WHERE clause to filter the rows you want to
analyze in the table. This WHERE clause enables you then to retrieve
valid and invalid data that match certain specified criteria or
conditions.

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.

Covert XML type to Java Type

tStatCatcher Statistics

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

Use cursor

Select this check box to specify the number of rows you want to
work with at at a given time. This option optimises
performance.

Trim all the String/Char columns

Trim column

Remove leading and trailing whitespace from the defined
columns.

This check box is not visible if Trim all
the String/Char columns is selected. Clear Trim all the String/Char columns to
enable Trim column.

No null values

Select this check box to improve the performance if there are no
null values.

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.

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 can be used as a start or intermediary step. It
requires an output flow.

Analyzed column

Custom pattern

Patterns list

DQ rule list

Query type

Guess Query

Guess schema

Query