> For the complete documentation index, see [llms.txt](https://endash-guidance-docs.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://endash-guidance-docs.gitbook.io/docs/data/data-model-details/build-data-model.md).
# Build - Data model
## Overview
* Click on the Build tab.
## Query your data model with SQL
### Execute
* Click on the Execute button.
* A toast message will notify if succeeded.
* A Toast message shows where the query wrong if not succeed
### Discard
* Click the Discard button to revert back your query.
### Save
* Click the Save button to save the query of that Data model.
{% hint style="info" %}
Please refresh your dashboard later if any.
{% endhint %}
* A pop-up will ask you to save change the query or dismiss it.
## Constraint rules
### Upstream data and Downstream data
* Click on the Insert button of a data model to query it.
* If you modify an Upstream, it can affect the downstream data.
## 👋 Need help?
{% hint style="info" %}
If you need help querying a specific data model that suits your needs but is unfamiliar with SQL, you can use our [AI query](/docs/data/build-and-modify-a-data-model-with-our-ai-query.md) or [contact](/docs/need-more-help/contact-us.md) us and we will support you.
{% endhint %}
