# Teradata

Catalog and govern Teradata assets in Atlan. Optionally mine query history to build lineage.

## Required permissions

- [Preflight checks for Teradata](https://docs.atlan.com/llms/connectors/teradata/preflight-checks-for-teradata/llms.txt): Before running the Teradata crawler, you can run preflight checks to perform the necessary technical validations.

## Setup options

- [Set up Teradata](https://docs.atlan.com/llms/connectors/teradata/set-up-teradata/llms.txt): :::warning Who can do this? You need your Teradata administrator to run these commands - you may not have access yourself.

## Crawl and mine

- [Crawl Teradata](https://docs.atlan.com/llms/connectors/teradata/crawl-teradata/llms.txt): Extract metadata from Teradata to catalog databases, tables, views, and columns. Extract query lineage and asset information after configuring user permissions.
- [Mine Teradata](https://docs.atlan.com/llms/connectors/teradata/mine-teradata/llms.txt): Once you have crawled assets from Teradata, you can mine its query history to construct lineage.
- [Set up on-premises Teradata miner access](https://docs.atlan.com/llms/connectors/teradata/set-up-on-premises-teradata-miner-access/llms.txt): In some cases you will not be able to expose your Teradata instance for Atlan to mine query history. For example, this may happen when security requirements restrict access to sensitive, mission-critical data.

## Reference

- [How Atlan connects to Teradata](https://docs.atlan.com/llms/connectors/teradata/how-atlan-connects-to-teradata/llms.txt): Understand how Atlan securely connects to your Teradata database to extract metadata.
- [What does Atlan crawl from Teradata?](https://docs.atlan.com/llms/connectors/teradata/what-does-atlan-crawl-from-teradata/llms.txt): During a Teradata crawl, Atlan extracts metadata for Schemas, Tables, Views, and Columns. Reference tables map each Teradata property to its Atlan asset.