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

# Knowledge Based

{% content-ref url="/pages/lCXJxSIjHKJb0gLYKiXE" %}
[How to change Data Types in Cascade](/cascade/cascade-faqs/knowledge-based/how-to-change-data-types-in-cascade.md)
{% endcontent-ref %}

{% content-ref url="/pages/qXmCbebLDCZbi2pHmRHE" %}
[How to remove columns from a table in Cascade](/cascade/cascade-faqs/knowledge-based/how-to-remove-columns-from-a-table-in-cascade.md)
{% endcontent-ref %}

{% content-ref url="/pages/kC6H9QPLqn5tlk2Bh97m" %}
[How to rename columns in Cascade](/cascade/cascade-faqs/knowledge-based/how-to-rename-columns-in-cascade.md)
{% endcontent-ref %}

{% content-ref url="/pages/skX9QoSAm5SzA7U542O9" %}
[Understanding the Join options in the Cascade Join tool](/cascade/cascade-faqs/knowledge-based/understanding-the-join-options-in-the-cascade-join-tool.md)
{% endcontent-ref %}

{% content-ref url="/pages/J9yEgOJcpzDgCpaZJSRu" %}
[How to connect tools to each other](/cascade/cascade-faqs/knowledge-based/how-to-connect-tools-to-each-other.md)
{% endcontent-ref %}