Navigate data previews

Data Preview is an integral component for pipeline design activities. After saving or validating a Pipeline, you can preview the data that a Snap passes down the pipeline. You can navigate through the data preview of Snaps via a table or JSON views, and generate data visualizations from that data.

  • Set the number of records (optional)
  • Launch data preview

You can change the number of records to be shown in the Data Preview, up to a total size of 15 MB. Depending on the size of individual records, increasing the number can provide better visualization.

To change the number of records:

  1. In the IIP, click the dropdown next to your username to open the menu:

  2. Select Application Settings to open the Settingsdialog:

  3. In the Settings dialog, click the Preview Document Count drop-down menu, and choose from the available values.
  4. Click Save.
You can use the functionality to navigate the Data Preview.
  • Validate the pipeline
  • Launch Data Preview
  1. Use the outer arrows at the bottom left of the data preview to navigate to the results for the next or the previous Snap:
  2. View data in error documents:

    If a Snap fails to validate, you can preview data from the failed Snap's error documents.

  3. Click the triangle at the top of the DataViz bar and drag the cursor to the left or click the triangle at the top of the DataViz bar to display chart options.
  4. For each data visualization type:
    OptionDescription
    Pie chart Select Pie Chart
    Line Chart for Numeric Fields
    1. Select Line Chart
    2. For each line, select a numeric field key.
    Line Chart Over Time
    1. For Chart Type, select Line Chart - Date as X axis.
    2. For X-axis (date), select a temporal field (year, date, or time).
    3. Click Key to Visualize.
    4. Select the key for the y-axis values.
    Bar Chart to Compare Values
    1. Select Bar Chart - Count.
    2. Click Key to Visualize.
    3. Select the key field for the y-axis.
    Bar Chart to Aggregate Data
    1. Select Bar Chart - Group and Count.
    2. For Category, select the target type.
    3. For Group by, select the field to aggregate.
    4. Roll your cursor over the bars to display a range of the values per each category for the indexical relationship between the group key value and the number of entries for that value.
    Scatter Chart
    1. Select Scatter Chart as the Chart Type.
    2. Select a data category from the X-Axis and Y-axis drop-down menus.
    3. Optionally, select a data category from the Group By menu.
    4. Roll over or click a data point to view values. The header shows the value for the Group by field, and the X- and Y- axis values appear below, separated by a comma.
  5. Click the Close button to exit Data Preview and return to the pipeline canvas.

Troubleshooting Data Preview

If you have issues with data preview, check the following:

  • If the data preview does not display or you get a validation error, check the User Settings and select fewer records to preview. Make sure the records do not total more than 15 MB in size. If changing the number of records does not work, check with your administrator to see if Pipeline Validation has been disabled at the Org level.
  • If the preview data is not exactly what you are expecting, the browser might be caching stale data. In the toolbar, click Retry: