> For the complete documentation index, see [llms.txt](https://docs.redivis.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.redivis.com/reference/datasets/samples.md).

# Samples

Some datasets include a 1% [data](/reference/datasets/data.md) sample, which supports faster exploratory queries for very large tables. Datasets can also have fewer [access](/reference/data-access.md) restrictions to the sample than the full dataset.

## Methodology

Sampling is applied independently to each version of a dataset. Samples can either be a random sample applied to all tables in the dataset, or a sample created on a variable which will be applied to all tables in the dataset that contain that variable.

## Usage

You can see if a sample exists on a dataset and how the sample was created in the right bar next to the list of tables. The tables list can also be filtered to see which tables have a sample. If you only have [sample access](/reference/data-access/access-levels.md) to this dataset you might see a **Sample** tag next to table names, which means you are looking at the sampled table of data.

When adding a dataset to a [workflow](/reference/workflows.md), the dataset will always default to the sample if one exists. A dataset can be [switched](/reference/workflows/data-sources.md) between the sample and the full data at any time.

*For editors:* [*How to create a sample*](/reference/datasets/create-and-edit-datasets/create-a-sample.md)


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