> For the complete documentation index, see [llms.txt](https://docs.vngcloud.vn/vng-cloud-document/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vngcloud.vn/vng-cloud-document/vmonitor/dashboards/logs/lam-viec-voi-log-project/field-mapping.md). # Field mapping If Log mapping means redefining the identification of some fields in log data, then Field mapping is a feature that we provide to help you **adjust the data type of fields from the log to** the vMonitor system. Platform. To change the data type to match the fields from the log, follow the instructions below: 1. Log in to . If you don't have an account, register for free [here](https://register.vngcloud.vn/signup) . 2. **Select the Log** folder . 3. Select **Field mapping.** 4. We will allow you to edit the data type if the field's original data type is of type **Number** or **Date** . The type of data initially recorded from the log is displayed in the **Type** column . Select ![](https://docs.vngcloud.vn/~gitbook/image?url=https%3A%2F%2Fdocs-admin.vngcloud.vn%2Fdownload%2Fthumbnails%2F49650644%2Fimage2023-4-27_9-37-38.png%3Fversion%3D1%26modificationDate%3D1682563058000%26api%3Dv2\&width=40\&dpr=4\&quality=100\&sign=33ff9ee\&sv=1). 5. If you edit on a field with data type **Number** , the system displays the **Edit field** screen . Select **the Format** appropriate to the field you are selecting:
6\. If you edit on a field with data type **Date** , the system displays the **Edit field** screen . Select **the Format** and **Date format pattern** appropriate to the field you are selecting:
7\. Select **Save** . --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.vngcloud.vn/vng-cloud-document/vmonitor/dashboards/logs/lam-viec-voi-log-project/field-mapping.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.