Using a repository schema partially in a Job - 7.0

Talend ESB Studio User Guide

author
Talend Documentation Team
EnrichVersion
7.0
EnrichProdName
Talend ESB
task
Design and Development
EnrichPlatform
Talend Studio

When using a repository schema, if you do not want to use all the predefined columns, you can select particular columns without changing the schema into a built-in one.

The following describes how to use a repository schema partially for a database input component. The procedure may vary slightly according to the component you are using.

Procedure

  1. Click the [...] button next to Edit schema on the Basic settings tab. The [Edit parameter using repository] dialog box appears. By default, the option View schema is selected.
  2. Click OK. The [Schema] dialog box pops up, which displays all columns in the schema. The Used Column check box before each column name indicates whether the column is used.
  3. Select the columns you want to use.
  4. Click OK. A message box appears, which prompts you to do a guess query.
    Note:

    The guess query operation is needed only for the database metadata.

  5. Click OK to close the message box. The [Propagate] dialog box appears. Click Yes to propagate the changes and close the dialog box.
  6. On the Basic settings tab, click Guess Query. The selected column names are displayed in the Query area as expected.

Results

For more information about how to set a repository schema, see Setting a repository schema in a Job.