:original_name: ddm_05_0009.html

.. _ddm_05_0009:

Comparing Two Parameter Templates
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Scenarios
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You can apply different parameter templates to the same DDM instance to view impacts on parameter settings of the instance.

You can also apply the same parameter template to different DDM instances to learn about the impacts.

Procedure
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#. Log in to the management console.
#. Click |image1| in the upper left corner and select a region and a project.
#. Click |image2| in the upper left corner of the page and choose **Databases** > **Distributed Database Middleware**.
#. Choose **Parameter Templates**, click the **Custom Templates** tab, locate the required parameter template, and click **Compare** in the **Operation** column.
#. In the displayed dialog box, select a parameter template and click **OK**.

   .. note::

      You can also click the **Default Templates** tab and compare a default template with a customer template. The procedure is the same as comparing parameter templates on the **Custom Templates** page.

   -  If their settings are different, the parameter names and values of both parameter templates are displayed.
   -  If their settings are the same, no data is displayed.

.. |image1| image:: /_static/images/en-us_image_0000001424936688.png
.. |image2| image:: /_static/images/en-us_image_0000001474893269.png