> For the complete documentation index, see [llms.txt](https://docs.cloudfabrix.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudfabrix.io/rda/rda-userguide/rda-data-management-cfxdm/cfxdm-dm-concat.md).

# cfxdm - dm:concat

Merge or append two or more named datasets

**dm:concat:** This cfxdm tag allows the user to merge two or more named datasets.

**dm:concat** syntax**:** 

* **names** (mandatory)**:** List of two or more named datasets, supports regex

{% hint style="info" %}
Please refer [**dm:save**](/rda/rda-userguide/rda-data-management-cfxdm/cfxdm-dm-save.md) and [**dm:savedlist**](/rda/rda-userguide/rda-data-management-cfxdm/cfxdm-dm-savedlist.md) tags on how to create and list named datasets.
{% endhint %}

Use [**dm:savedlist**](/rda/rda-userguide/rda-data-management-cfxdm/cfxdm-dm-savedlist.md) tag to list saved datasets

```
tag dm:savedlist
```

```
data
```

![](https://2978683539-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LhoMVYxiQlKXh6OxX98%2F-MW241TzJChMprmCiEhl%2F-MW63U6ICfm6eSUgjqdF%2FScreen%20Shot%202021-03-18%20at%201.40.49%20PM.png?alt=media\&token=c6234e28-1ba5-4ecf-9737-8443df0f439a)

**Example 1:** 

From the above named datasets, merge **prtg-alerts** & **vrops-alerts** into one new named dataset using dm:concat tag

```
tag dm:concat
```

```
data names = "prtg-alerts|vrops-alerts" --> dm:save name = 'consolidated-alerts'
```

OR

```
data names = ".*.alerts|.*.alerts" --> dm:save name = 'consolidated-alerts'
```

Change the tag to **dm:savedlist** to view the newly created 'consolidated-alerts' named dataset.

```
tag dm:savedlist
```

```
data
```

![](https://2978683539-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LhoMVYxiQlKXh6OxX98%2F-MW63bDV_8akgo9N7Tq3%2F-MW65VfMafJq5b_CgkxU%2FScreen%20Shot%202021-03-18%20at%201.49.39%20PM.png?alt=media\&token=fcf3ecba-fe5d-4142-bfbb-f83870049fc1)