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Query stream data points (events)

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  • Last UpdatedAug 17, 2026
  • 2 minute read

Query a stream to return a subset of stream data points. You can query a stream by:

  • Count: Queries for a specified number of stream data points that follow a start index.

  • Range: Queries for all stream data points within the window of a start index and end index.

  • First value: Queries for the first data point written to the stream.

  • Last value: Queries for the most recent data point written to the stream.

Before you can query a stream for data points, you must navigate to the query panel. Complete To browse to the query panel before following one of the instruction sets below for the query option you choose.

To browse to the query panel

  1. In the navigation rail, select Data stores.

  2. From the Change data store dropdown, verify that the data store instance containing the resources and data you want to work with is selected.

  3. Select the Streams card.

  4. From the data table, select the stream that you want to query for data.

  5. From the side sheet, select More options and then select View.

  6. Verify that the Range Query panel is enabled.

To query by count

  1. From Query Type, select Get Range Values.

  2. Select By Count.

  3. In Start Index, enter the date and time that you want your query to begin.

  4. In Count, enter the number of stream data points that you want to return.

  5. In Reversed, select whether to return the data points in chronological order or reverse chronological order.

    • True returns data points newest to oldest.

    • False returns data points oldest to newest.

  6. Select Apply.

    To query by range

    1. From Query Type, select Get Range Values.

    2. Select By Range.

    3. In Start Index, enter the date and time that you want your query to begin.

    4. In End Index, enter the date and time that you want your query to end.

    5. Select Apply.

      To query first value

      1. From Query Type, select Get First Value.

      2. Select Apply.

        To query last value

        1. From Query Type, select Get Last Value.

        2. Select Apply.

          Tip

          While querying, select Calendar to choose a date and time rather than entering one manually.