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

# Tutorials

- [Merge Columns](https://docs.tomat.ai/tutorials/merge-columns.md)
- [Join Types](https://docs.tomat.ai/tutorials/join-types.md)
- [Union Introduction](https://docs.tomat.ai/tutorials/union-introduction.md)
- [Window Functions](https://docs.tomat.ai/tutorials/window-functions.md): Calculates a window function operates on a group (“window”) of related rows
- [What is Unpivot?](https://docs.tomat.ai/tutorials/what-is-unpivot.md)
- [JSON Format Tutorial](https://docs.tomat.ai/tutorials/json-format-tutorial.md)
- [Using Regex](https://docs.tomat.ai/tutorials/using-regex.md)