# 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) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.redivis.com/reference/datasets/samples.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.