Database Type

Select the type of database you want to work on from the drop-down
list.

Component List

Select the relevant DB connection component in the list if you use
more than one connection in the current Job.

Database name

Name of the database.

Source table name

Name of the table holding the data you want to filter.

Target table name

Name of the table you want to write the filtered data in.

Schema and Edit
schema

A schema is a row description, it defines the number of fields that will be processed
and passed on to the next component. The schema is either built-in
or remote in the Repository.

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 flowcharts. Related topic: see
Talend Studio User
Guide.

Column Filters

In the table, click the Filter
check box to filter all of the columns. To select specific columns
for filtering, select the check box(es) which correspond(s) to the
column name(s).

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at a
Job level as well as at each component level.

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 is used as an intermediary component with other
relevant DB components, especially DB connection components.

SQL Template

SQL Template List