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Connecting Bold BI to MemSQL data source

The Bold BI Dashboard Designer supports connecting the MemSQL database using the SQL Live Query (C# API).

Choose MemSQL data source

To configure the MemSQL data source, follow these steps:

  1. Click Data Sources in the configuration panel to add a new data connection.

    Data source icon

  2. Click CREATE NEW to launch a new connection from the connection panel.

  3. Select the MemSQL connection in the connection panel.

    Choose data source

NOTE: You can also create a data source from the home page by clicking the Data Sources menu from left menu panel and Create Data Source from the data sources page.

Choose data source from server

Connect to MemSQL

Create MemSQL data source

After clicking the data source, the NEW DATA SOURCE configuration panel opens. Follow the given steps to create a MemSQL data source:

  1. Enter a name and description (optional) for the data source.

  2. Enter a valid MemSQL server or host name in the ServerName text box.

  3. Enter a valid MemSQL username in the UserName text box.

  4. Enter a valid MemSQL password in the Password text box.

  5. Select a database that you want to query in the listed database associated with the given MemSQL Server in the database combo box.

    MemSQL Connection

There are two connection types available in a data source:

* Live mode
* Extract mode

Live mode connection

In this connection type, a data source is directly fetched from source. Choose the Live mode option for this connection.

Live Connection

Data Preview

  1. Click Connect to connect the MemSQL server with configured details. The schema represents the collection list retrieved from the MemSQL server. This dialog displays a list of schemas in treeview and their corresponding values.

    Treeview schema

  2. Now, the data design view page with the selected table schema opens. Drag the table.

    Query designer

    You can use the Code View option for passing a query to display data.

    Codeview mode

  3. Click Save to save the data source with a relevant name.

Extract mode connection

In this connection type, a data source is fetched from source periodically. Choose the Extract mode option for this connection.

Extract Connection

Refresh Settings

Steps to configure the data source refresh settings:

  1. Click Refresh Settings in the configuration panel.

    Refresh Setting

  2. Select the recurrence type, recurrence start, and end dates in the Refresh Setting dialog box.

    • Data refresh can be scheduled hourly, daily, weekly, and monthly.
    • Application Time Zone is displayed below the date picker. Start time of the schedule is converted to the client Time Zone and shown at the right-side for users convenience. After selecting, click Schedule.

    Save Schedule

Preview and data import

  1. Click Connect to connect the MemSQL server with configured details.

  2. The Choose Table(s) dialog opens. This dialog displays a list of tables and views in treeview. Select the required table(s) or view(s) from treeview to use it in the designer. The option is available for configuring incremental refresh column (The table must have a primary key column and date column to configure this option) for the selected items in the right-side panel. If you configure it, then the data source will work on Incremental update, otherwise it will work on Full load concept. Finally, click Connect.

    Preview

  3. Now, the data design view page with the selected table schema opens. Drag the table.

    Query Editor

    You can use the Code View option for passing query to display data.

    Codeview mode

  4. Click Save to save the data source with a relevant name.

NOTE: In future, you can edit the connection information for both Live and Extract mode connections using the Edit Connection option.

Data Transformation

Editing a Data Connection

Dashboard Designer Walkthrough