.. _auto_dataset_slice:

*DATASET SLICE*
===============

Extracts a contiguous sub-range of rows from a dataset by applying a row-level offset and optional length limit. Use it to page through large datasets, skip header rows, or isolate a specific window of records for downstream processing.

When to use
-----------

Classification: **process**.

Tagged: ``array_slice``, ``dataset``, ``filter``, ``pagination``, ``rows``, ``slice``, ``subset``, ``window``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Choose Dataset
     - dataset_1
     - dataset
     - —
     - 
     - The source dataset whose rows will be sliced; accepts any tabular dataset available on the platform.
   * - Offset
     - offset
     - scalar
     - 0
     - 
     - Zero-based row index at which the slice begins (default 0 = start from the first row); must be a non-negative integer.
   * - Length
     - length
     - scalar
     - 0
     - 
     - Number of rows to return after the offset (default 0 = return all remaining rows); set to a positive integer to limit the output window.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - dataset_get_first_row_output_1
     - dataset_get_first_row_output_1
     - dataset
     - Sliced dataset containing only the rows within the requested offset/length window, preserving the original column structure.

Disciplines
-----------

- data.dataset.transform

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=dataset_slice <https://www.d3view.com/api/workflow/example?id=dataset_slice>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>dataset_slice</code>. Schema hash: <code>b824440adc81</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>