Configure server parameters in Azure Database for MySQL using the Azure portal

Azure Database for MySQL supports configuration of some server parameters. This article describes how to configure these parameters by using the Azure portal. Not all server parameters can be adjusted.

Note

Server parameters can be updated globally at the server-level, use the Azure CLI, PowerShell, or Azure portal.

Configure server parameters

  1. Sign in to the Azure portal, then locate your Azure Database for MySQL server.
  2. Under the SETTINGS section, click Server parameters to open the server parameters page for the Azure Database for MySQL server. Azure portal server parameters page
  3. Locate any settings you need to adjust. Review the Description column to understand the purpose and allowed values. Enumerate drop down
  4. Click Save to save your changes. Save or Discard changes
  5. If you have saved new values for the parameters, you can always revert everything back to the default values by selecting Reset all to default. Reset all to default

Setting parameters not listed

If the server parameter you want to update is not listed in the Azure portal, you can optionally set the parameter at the connection level using init_connect. This sets the server parameters for each client connecting to the server.

  1. Under the SETTINGS section, click Server parameters to open the server parameters page for the Azure Database for MySQL server.

  2. Search for init_connect

  3. Add the server parameters in the format: SET parameter_name=YOUR_DESIRED_VALUE in value the value column.

    For example, you can change the character set of your server by setting of init_connect to SET character_set_client=utf8;SET character_set_database=utf8mb4;SET character_set_connection=latin1;SET character_set_results=latin1;

  4. Click Save to save your changes.

Note

init_connect can be used to change parameters that do not require SUPER privilege(s) at the session level. To verify if you can set the parameter using init_connect, execute the set session parameter_name=YOUR_DESIRED_VALUE; command and if it errors out with Access denied; you need SUPER privileges(s) error, then you cannot set the parameter using `init_connect'.

Working with the time zone parameter

Populating the time zone tables

The time zone tables on your server can be populated by calling the mysql.az_load_timezone stored procedure from a tool like the MySQL command line or MySQL Workbench.

Note

If you are running the mysql.az_load_timezone command from MySQL Workbench, you may need to turn off safe update mode first using SET SQL_SAFE_UPDATES=0;.

CALL mysql.az_load_timezone();

Important

You should restart the server to ensure the time zone tables are properly populated. To restart the server, use the Azure portal or CLI.

To view available time zone values, run the following command:

SELECT name FROM mysql.time_zone_name;

Setting the global level time zone

The global level time zone can be set from the Server parameters page in the Azure portal. The below sets the global time zone to the value "US/Pacific".

Set time zone parameter

Setting the session level time zone

The session level time zone can be set by running the SET time_zone command from a tool like the MySQL command line or MySQL Workbench. The example below sets the time zone to the US/Pacific time zone.

SET time_zone = 'US/Pacific';

Refer to the MySQL documentation for Date and Time Functions.

Next steps