Preview source data

Overview

Preview source data shows a read-only sample of data returned by a selected source. Use it to check source connectivity, inspect returned columns, and test a filter before building or refreshing downstream objects.

Function

When the dialog opens, AnalyticsCreator loads sample rows for the selected source and displays them in a grid. The grid creates columns from the returned source fields and supports scrolling through the preview result.

Use Filter, Num of rows, and Timeout (sec) to control the next preview request. Choose Apply to rerun the preview with those settings. Choose OK to close the dialog after reviewing the sample data.

For file-based CSV sources, the preview command opens the source file directly instead of showing the preview grid.

Access

Open Preview source data from a source in the navigation tree or from a source object on the architecture diagram.

How to access

Sources -> source -> Preview data

Toolbar

Not direct. Use a source context menu in the navigation tree or diagram.

Diagram

Architecture source object -> Preview data

Visual element

Preview dialog

Screen overview

ID Property Description
1 Preview grid Read-only grid that displays sample rows returned by the selected source. Columns are created from the returned source fields.
2 Filter Filter text used for the next preview request.
3 Num of rows Maximum number of rows to request for the preview. The value must be numeric before the preview can run.
4 Timeout (sec) Maximum time, in seconds, allowed for the preview query before it times out.
5 Apply Reruns the preview with the current filter, row count, and timeout settings.
6 OK Closes the preview dialog.

Related topics