Define a Data Source Node

You can use this interface to:

If you import a workflow that uses tables or views that are not available, then you can use this wizard to define a data source to replace the missing one. The wizard also detects input columns with JSON data types.

The wizard has two steps:

  1. Select Table: Here, the tables and views to which you have access, are displayed. The schemas are the schemas to which you are connected, along with the schemas added using the Edit Schema List. Select the table or view types. The columns and data are displayed in the lower pane in the following tabs:

    • Columns: Lists the columns of the selected table in a grid. For each column, Data Type, Mining Type, Length, Precision, Scale, and Column ID are displayed.

    • Data: Displays the data in the table arranged according to Column ID.

      • To include all attributes in the table, click Finish.

      • To manually exclude certain attributes in the table, click Next.

      • To change the table selection for an existing node, click Edit Data Source Node.

  2. Select Columns: By default, the Define Data Source wizard includes all columns in the Table or View. You can perform the following tasks:

    • Include a column by moving the attribute from Available Attribute to Selected Attributes section.

      A drop-down list is available for JSON data. If there is an input table with JSON data, then the wizard detects the column as a JSON column and displays it in the Data Type column. If the wizard cannot detect JSON data, then you can manually change the data type for the column by clicking the drop-down list.

    • Specify Data Guide Settings: Applicable only for JSON data type. Select the attribute and click edit to specify Data Guide settings in the Edit Data Guide dialog box.

    • JSON Settings: Click JSON Settings to specify node settings that determines how Data Guides are generated. This option is applicable only for JSON data.


See Also: