# Code processing

Choose a node to view its purpose and configuration.

| Node | Purpose |
| --- | --- |
| [SQL Processing](sql-processing.md) | Query, aggregate, or update data using SQL. |
| [Python Processing (Custom Operator)](python-processing.md) | Define inputs, outputs, and Python code for a custom node. |

```{toctree}
:hidden:
:maxdepth: 1

SQL Processing <sql-processing>
Python Processing (Custom Operator) <python-processing>
```