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The Gmail ODBC Driver is a powerful tool that allows you to connect with live Internet E-mail (Gmail), directly from any applications that support ODBC connectivity.

Access Gmail folders and message data like you would a database - read, write, and send E-mails through a standard ODBC Driver interface.

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How to create Visio diagrams from Gmail Data


Automatically update Gmail data with the changes you make to Visio master shapes.

Automate the process of entering data into Visio diagrams and keeping your diagrams up to date with the CData ODBC Driver for Gmail. The driver surfaces Gmail data as an ODBC data source that can be accessed by applications with built-in ODBC support like Microsoft Office. This article shows how to create a simple diagram to start brainstorming about Visio projects linked to Gmail data.

Connect to Gmail as an ODBC Data Source

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

There are two ways to authenticate to Gmail. Before selecting one, first ensure that you have enabled IMAP access in your Gmail account settings. See the "Connecting to Gmail" section under "Getting Started" in the installed documentation for a guide.

The User and Password properties, under the Authentication section, can be set to valid Gmail user credentials.

Alternatively, instead of providing the Password, you can use the OAuth authentication standard. To access Google APIs on behalf on individual users, you can use the embedded credentials or you can register your own OAuth app.

OAuth also enables you to use a service account to connect on behalf of users in a Google Apps domain. To authenticate with a service account, you will need to register an application to obtain the OAuth JWT values.

In addition to the OAuth values, you will need to provide the User. See the "Getting Started" chapter in the help documentation for a guide to using OAuth.

Connect Gmail Data to Diagrams

Follow the steps below to use the Data Selector Wizard to import data into your diagram.

  1. Open Visio and click File -> New. Open the Brainstorming template.
  2. On the Data tab, click Link Data to Shapes.
  3. Select the ODBC option and select ODBC DSN.
  4. Select the DSN for Gmail, select the table you want to import, and finish the wizard. This article uses Inbox as an example.

Link Gmail Entities to Shapes

Follow the steps below to create a simple diagram that shows how to create shapes from your data, one of the ways to link Gmail entities to shapes:

  1. Click Brainstorming Shapes and drag a main topic onto the drawing page. Enter Inbox as the text of the main topic.
  2. Click Topic.
  3. Select a row in the External Data window and drag it onto the drawing page.
  4. Right-click the Topic shape and click Data -> Edit Data Graphic.
  5. Click New Item.
  6. In the Data Field menu, select a column. In the Displayed As menu, select how to display them.
  7. Drag a few other Gmail entities onto the drawing page and add association lines back to the main topic, Inbox. New topics have the same configuration: Numeric columns displayed in data bars stand out in contrast to other Inbox entities.

You can refresh your diagram from the Data tab, synchronizing your shapes with the external Gmail data.