docs(dwh): add data warehouse powerBI connection info MTA-6169

pages/data-warehouse/how-to/connect-bi-tools.mdx

@@ -110,34 +110,75 @@ Refer to the official [ClickHouse®](https://clickhouse.com/docs/integrations/me
 
 ## PowerBI Desktop
 
-Power BI Desktop is a robust data visualization tool that allows users to create dynamic reports and dashboards from various data sources. 
+Power BI Desktop is a robust data visualization tool that allows users to create dynamic reports and dashboards from various data sources. To connect to your Data Warehouse for ClickHouse® deployment, PowerBI requires a MySQL connection using a dedicated user with a **plain text password**.
 
 <Message type="note">
 ODBC connection between PowerBI and Data Warehouse for ClickHouse® is currently not supported.
 </Message>
 
+### Creating a dedicated MySQL user
 
-0. Make sure you installed [PowerBI Desktop]https://www.microsoft.com/en-us/download/details.aspx?id=58494/), and [MySQL Connector/NET](https://dev.mysql.com/downloads/connector/net/).
+1. [Connect to your deployment](/data-warehouse/how-to/connect-applications/).
 
-1. Open PowerBI Desktop.
+2. Run the SQL query below to create a user with a plain text password. Replace the placeholders with the appropriate values:
+    ```sql
+    CREATE USER mysql_user IDENTIFIED WITH plaintext_password BY 'mysql_user_password';
+    ```
 
-2. Click **Get Data** from the top ribbon, then select **More...** at the bottom of the drop-down menu. A pop-up displays.
+3. Run the SQL query below to grant the user access to the database:
 
-3. Select the **Database** category, select **MySQL database** in the list, then click **Connect**. A connection pop-up displays.
+    ```sql
+    GRANT SELECT(id) ON my_database.my_table TO mysql_user WITH GRANT OPTION;
+    ```
 
-4. Enter the values below, then click **OK**.
+Your user can now access the specified database using the credentials you just defined.
+
+### Connecting PowerBI to your deployment
+
+<Tabs id="power-bi-connection">
+<TabsTab label="PowerBI Desktop">
+1. Make sure you installed [PowerBI Desktop](https://www.microsoft.com/en-us/download/details.aspx?id=58494/), and [MySQL Connector/NET](https://dev.mysql.com/downloads/connector/net/).
+
+2. Open PowerBI Desktop.
+
+3. Click **Get Data** from the top ribbon, then select **More...** at the bottom of the drop-down menu. A pop-up displays.
+
+4. Select the **Database** category, select **MySQL database** in the list, then click **Connect**. A connection pop-up displays.
+
+5. Enter the values below, then click **OK**.
     - **Server**: `<YOUR_DEPLOYMENT_ID>.dtwh.<REGION>.scw.cloud`
     - **Database**: the name of the database to import
 
     A credentials pop-up displays.
 
-5. Select **Database** from the left menu, enter the values below, then click **Connect**.
-    - **User name**: your deployment admin user (`scwadmin` by default)
+6. Select **Database** from the left menu, enter the values below, then click **Connect**.
+    - **User name**: your dedicated MySQL user [previously created](#creating-a-dedicated-mysql-user)
     - **Password**: the password you set at deployment creation
 
     The **Navigator** pop-up displays, showing the different schemas and tables contained in your Data Warehouse for ClickHouse® deployment.
 
-6. Select the desired tables, then **Load** to import data, or **Transform Data** to start working with your dataset.
+7. Select the desired tables, then **Load** to import data, or **Transform Data** to start working with your dataset.
+</TabsTab>
+<TabsTab label="PowerBI Service (Online)">
+
+1. Access [PowerBI Service](https://app.powerbi.com).
+
+2. From the PowerBI Service interface, click the **+ New** button from the toolbar. A list of data sources displays.
+
+3. Select **MySQL Database** from the list. A connection wizard displays.
+
+4. Enter the following values.
+    - **Server**: `<YOUR_DEPLOYMENT_ID>.dtwh.<REGION>.scw.cloud`
+    - **Database**: the name of the database to import (`default` if you did not create additional databases in your deployment)
+    - **Connection**: `<YOUR_DEPLOYMENT_ID>.dtwh.<REGION>.scw.cloud`
+    - **Connection name**: `<YOUR_DEPLOYMENT_ID>.dtwh.<REGION>.scw.cloud`
+    - Authentication type: `Basic`
+    - Username: your dedicated MySQL user [previously created](#creating-a-dedicated-mysql-user))
+    - Password: The plain text password assigned to your MySQL user
+    - Privacy level: `None`
+5. Click **Next**. The **Power Query** interface displays, allowing you to use the `MySQL.Database` function from this interface.
+</TabsTab>
+</Tabs>
 
 Your Data Warehouse for ClickHouse® is now integrated into your PowerBI platform.