# Overview

- [What is DeltaStream?](https://docs.deltastream.io/overview/readme.md): How DeltaStream combines streaming and batch processing for real-time analytics using the compute engine of your choice.
- [Core Concepts](https://docs.deltastream.io/overview/core-concepts.md): Understand the basic concepts and technologies that underpin DeltaStream
- [Access Control](https://docs.deltastream.io/overview/core-concepts/access-control.md): How DeltaStream handles user access
- [Compute Pools](https://docs.deltastream.io/overview/core-concepts/compute-pools.md): Get real-time analytics from data stored in Iceberg tables.
- [Data Store](https://docs.deltastream.io/overview/core-concepts/store.md): How DeltaStream works with your data stores
- [Database](https://docs.deltastream.io/overview/core-concepts/databases.md): Data organization in DeltaStream
- [Function](https://docs.deltastream.io/overview/core-concepts/function.md): Defining your own functions in DeltaStream to extend DeltaStream capabilities for your business
- [Query](https://docs.deltastream.io/overview/core-concepts/queries.md): Querying data in DeltaStream -- how you get things done
- [Region](https://docs.deltastream.io/overview/core-concepts/region.md): The impact of regional data storage in DeltaStream
- [SQL](https://docs.deltastream.io/overview/core-concepts/sql.md): Do everything you need in DeltaStream using only SQL
- [Visualizing Data Lineage](https://docs.deltastream.io/overview/core-concepts/stream-360.md): Display your DeltaStream ecosystem in adjustable flowchart form.


---

# 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.deltastream.io/overview.md?ask=<question>
```

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.