:original_name: gaussdb_05_0099.html

.. _gaussdb_05_0099:

Viewing Parameter Change History
================================

Scenarios
---------

You can view the change history of DB instance parameters or custom parameter templates.

.. note::

   In a newly exported or created parameter template, the change history is blank.

Viewing Change History of DB Instance Parameters
------------------------------------------------

#. Log in to the management console.

#. Click |image1| in the upper left corner and select a region and a project.

#. Click **Service List**. Under **Database**, click **GaussDB**.

#. On the **Instances** page, click the target DB instance.

#. In the navigation pane on the left, choose **Parameters**. On the displayed page, click **Change History**.

   You can view the parameter name, original parameter value, new parameter value, modification status, modification time, application status, and application time.

   You can apply the parameter template to DB instances as required by referring to :ref:`Applying a Parameter Template <gaussdb_05_0018>`.

Viewing Change History of a Parameter Template
----------------------------------------------

#. Log in to the management console.

#. Click |image2| in the upper left corner and select a region and a project.

#. Click **Service List**. Under **Database**, click **GaussDB**.

#. Choose **Parameter Templates** in the navigation pane on the left. On the **Custom Templates** page, click the target parameter template.

#. On the displayed page, choose **Change History** in the navigation pane on the left.

   You can view the parameter name, original parameter value, new parameter value, modification status, and modification time.

.. |image1| image:: /_static/images/en-us_image_0000001352219100.png
.. |image2| image:: /_static/images/en-us_image_0000001352219100.png
