# Datasets

Using the **Datasets** screen, users are now able to manage daily RDFs for any Dataset in the system. On top of that, the **Datasets** provides to ability to associate a [**Metadata Defenition**](https://olddocs.exivity.io/3.4.3/metadata#step-1-defining-metadata-fields) with a **Dataset** enabling tagging of services.

{% hint style="danger" %}
**CAUTION**  Deleting a Daily RDF or entire Dataset is an irreversible operation
{% endhint %}

### Deleting days in a Dataset

In order to remove certain days (or: [Daily RDFs](https://olddocs.exivity.io/3.4.3/advanced/digging-deeper/databases#daily-rdfs)) from a Dataset, browse to the **Data Pipelines > Datasets** menu and select the **Dataset** from which you want to delete certain days.

Then click the red trashbin icon next to each day for which you want to remove its data:

![Deleting days from a Dataset](https://3540922554-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LHEKskLK6aXinV75Knl%2F-M-KehP8xQbIqvEK-qi_%2F-M-KirlpJkJBVhVLwTw1%2Fimage.png?alt=media\&token=49adc25e-1501-4bb0-9f4f-95938d210bad)

Once each day has been set to delete, confirm your selection by clicking the **Update** button:

![Confirm Deletion of Daily RDFs](https://3540922554-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LHEKskLK6aXinV75Knl%2F-M-KehP8xQbIqvEK-qi_%2F-M-Kk-JIa-a3kyRFsLNQ%2Fimage.png?alt=media\&token=e83b0fb2-46dc-4ec3-8ee1-28b991cfc8b4)

### Deleting an entire Dataset

In order to d elete the entire **Dataset** the *Delete* button in the lift bottom corner can be used:

![Click OK to delete the entire Dataset](https://3540922554-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LHEKskLK6aXinV75Knl%2F-M-KehP8xQbIqvEK-qi_%2F-M-KmeF6ufNRFzxLDAmB%2Fimage.png?alt=media\&token=02d3f50e-b3d7-4e1b-939b-473daa43a93f)

After confirmation the entire **Dataset** will be deleted from disk.

### Associating Metadata to a Dataset

In order to use **Metadata** for Services, a **Metadata Defenition** needs to be associated to the corresponding **Dataset**. This can be achieved by opening the **Data Pipelines >** **Datasets** management screen, then selecting the **Dataset** for which you want to configure **Metadata:**

![Associating Metadata to a Dataset](https://3540922554-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LHEKskLK6aXinV75Knl%2F-M-KehP8xQbIqvEK-qi_%2F-M-Ko0YwaFtI-VN0iPrb%2Fimage.png?alt=media\&token=a1ed5af4-e86a-4223-99b1-6a83e30fd246)

Afterwards make sure to click the *Update* button to ensure your changes are saved. Now it is possible to configure Metadata values for all the [**Services** ](https://olddocs.exivity.io/3.4.3/reports/services#filters-and-reporting-depth)in this **Dataset**.