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Database Setup for Timezone Settings

In order to use our Timezone Settings, some special databases require an additional setup for timezone information.

Snowflake​

Holistics needs to get the correct data source timezone of your Snowflake to apply the Timezone Settings feature:

  • Step 1: Log in to Snowflake Console using the same user at Holistics

  • Step 2: Run the query below to get the timezone for that user:

    SHOW PARAMETERS LIKE 'TIMEZONE%';

    The result will look like:

  • Step 3: Use the timezone in the value column to set the data source timezone at Holistics:

caution

Setting this value to anything other than the timezone that your database is in may lead to unexpected results.

MySQL​

MySQL requires a timezone table to use the Timezone Settings feature. This can be run by an admin:

  • Step 1: Admins need to run the following command on your MySQL database server:

    mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql
  • Step 2: After that, try running some timezone-related queries to ensure the timezone table is loaded properly. For example:

    SET time_zone ='Asia/Singapore';

You might need to restart your MySQL server in order for the changes to take effect.

  • Step 3: Log in to Holistics and test the database connection: If you have connected to your MySQL before, you need to go to the Data Source Management > Edit data source > Re-test your connection:

For more information, you can read more in the MySQL documentation.

caution

In case the timezone information changes (i.e: your country decided to officially switch to a new timezone, excluded Day-light Saving Time), the applications that use the old rules become out of date and you need to reload the timezone tables to keep the timezone information up to date.


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