---
title: "Define"
slug: "common-vapidatatype-dataflowetljobnode-transformdefine"
updated: 2026-09-17T09:25:17Z
published: 2026-09-17T09:25:17Z
canonical: "api.ncloud-docs.com/common-vapidatatype-dataflowetljobnode-transformdefine"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Define

This is the conversion (transform) operation information for the define type.

              Note

              

For common syntax and field information on the node source, transform, and target types of Data Flow ETL jobs, see [ETLJobNode common](/docs/en/common-vapidatatype-dataflowetljobnode).

### Syntax

The syntax is as follows:

```
private List<DefineField> defineFieldList;
```

### Field

The following describes the fields:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `defineFieldList[].name` | String | Required | Existing field name |
| `defineFieldList[].newType` | String | Required | Type to change to |
| `defineFieldList[].newName` | String | Required | Name of the field to change |