Managing Tags

Tag Management

A tag is a key-value pair that you can customize to identify cloud resources. It helps you to classify and search for cloud resources. A tag consists of a tag key and a tag value. If you use tags in other cloud services, you are advised to create the same tag (key-value pairs) for cloud resources used by the same business to keep consistency.

If your organization has configured tag policies for DLI, add tags to resources based on the policies. If a tag does not comply with the tag policies, resource creation may fail. Contact your organization administrator to learn more about tag policies.

DLI supports the following two types of tags:

• Resource tags: non-global tags created on DLI

• Predefined tags: global tags created on Tag Management Service (TMS).

  For more information about predefined tags, see Tag Management Service User Guide.

This section describes how to add, modify, and delete tags for databases and tables.

Database Tags

1. In the navigation pane on the left, choose Data Management > Databases and Tables.
2. Locate the row that contains the target database, and click More > Tags in the Operation column.
3. The tag management page is displayed, and the tags (if there are) are displayed.
4. On the displayed page, click Add/Edit Tag. The Add/Edit Tag dialog box is displayed.
   Enter a tag key and a tag value in the text boxes and click Add.

   Figure 1 Adding/Editing tags
   

   Table 1 Tag parameters

   Parameter	Description
   Tag key	You can specify the tag key in either of the following ways: Click the text box for tag key and select a predefined tag key from the drop-down list. To add a predefined tag, you need to create one on TMS and then select it from the Tag key drop-down list. You can click View predefined tags to go to the Predefined Tags page of the TMS console. Then, click Create Tag in the upper corner of the page to create a predefined tag. For details, see Creating Predefined Tags in Tag Management Service User Guide. Enter a tag key in the text box. NOTE: A tag key can contain a maximum of 128 characters. Only letters, numbers, spaces, and special characters (_.:=+-@) are allowed, but the value cannot start or end with a space or start with _sys_.
   Tag value	You can specify the tag value in either of the following ways: Click the tag value text box and select a predefined tag value from the drop-down list. Enter a tag value in the text box. NOTE: A tag value can contain a maximum of 255 characters. Only letters, numbers, spaces, and special characters (_.:=+-@) are allowed. The value cannot start or end with a space.

   

   • A maximum of 20 tags can be added.
   • Only one tag value can be added to a tag key.
   • The key name in each resource must be unique.

5. Click OK. The database tag is added.

   To delete a tag, click Delete in the Operation column of the target tag.

Table Tags

1. In the navigation pane on the left, choose Data Management > Databases and Tables.
2. Click a database name to view the tables in the database.
3. Locate the row that contains the target table and click More > Tag in the Operation column.
4. The tag management page is displayed, and the tags (if there are) are displayed.
5. On the displayed page, click Add/Edit Tag. The Add/Edit Tag dialog box is displayed.
   Enter a tag key and a tag value in the text boxes and click Add

   Figure 2 Adding/Editing tags
   

   Table 2 Tag parameters

   Parameter	Description
   Tag key	You can specify the tag key in either of the following ways: Click the text box for tag key and select a predefined tag key from the drop-down list. To add a predefined tag, you need to create one on TMS and then select it from the Tag key drop-down list. You can click View predefined tags to go to the Predefined Tags page of the TMS console. Then, click Create Tag in the upper corner of the page to create a predefined tag. For details, see Creating Predefined Tags in Tag Management Service User Guide. Enter a tag key in the text box. NOTE: A tag key can contain a maximum of 128 characters. Only letters, numbers, spaces, and special characters (_.:=+-@) are allowed, but the value cannot start or end with a space or start with _sys_.
   Tag value	You can specify the tag value in either of the following ways: Click the tag value text box and select a predefined tag value from the drop-down list. Enter a tag value in the text box. NOTE: A tag value can contain a maximum of 255 characters. Only letters, numbers, spaces, and special characters (_.:=+-@) are allowed. The value cannot start or end with a space.

   

   • A maximum of 20 tags can be added.
   • Only one tag value can be added to a tag key.
   • The key name in each resource must be unique.

6. Click OK. The table tag is added.

   To delete a tag, click Delete in the Operation column of the target tag.