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

# Merging

{% content-ref url="/pages/U8iPcgS9LIYGnosnjutZ" %}
[Join by ID](/transformation-catalog/merging/join-by-id.md)
{% endcontent-ref %}

{% content-ref url="/pages/ZsGR5B1YgIbl2shGmY3b" %}
[Union](/transformation-catalog/merging/union.md)
{% endcontent-ref %}