> For the complete documentation index, see [llms.txt](https://docs.tabula.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tabula.io/data-flows/tools-nodes/table-operations.md).

# Table Operations

- [Combine Tables](https://docs.tabula.io/data-flows/tools-nodes/table-operations/combine-tables.md): Joins 2 tables using the specified columns as keys
- [Stack Tables](https://docs.tabula.io/data-flows/tools-nodes/table-operations/stack-tables.md): Stacks rows of two or more tables
- [Group By](https://docs.tabula.io/data-flows/tools-nodes/table-operations/group-by.md): Groups rows and calculate aggregation functions
- [Pivot](https://docs.tabula.io/data-flows/tools-nodes/table-operations/pivot.md): Creates new columns from values in the specified columns and computes aggregation functions as values for the new columns
- [Unpivot](https://docs.tabula.io/data-flows/tools-nodes/table-operations/unpivot.md): Merges one or more columns into key and value columns