# Table Operations

- [Combine Tables](/data-flows/tools-nodes/table-operations/combine-tables.md): Joins 2 tables using the specified columns as keys
- [Stack Tables](/data-flows/tools-nodes/table-operations/stack-tables.md): Stacks rows of two or more tables
- [Group By](/data-flows/tools-nodes/table-operations/group-by.md): Groups rows and calculate aggregation functions
- [Pivot](/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](/data-flows/tools-nodes/table-operations/unpivot.md): Merges one or more columns into key and value columns