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URL: https://www.cdata.com/kb/tech/snowflake-ado-powerbuilder.rst

⇱ Connect to Snowflake Data from PowerBuilder via ADO.NET

Connect to Snowflake Data from PowerBuilder via ADO.NET

👁 Jerod Johnson
Jerod Johnson
Director, Technology Evangelism
This article demonstrates how to access Snowflake data from Appeon PowerBuilder using the CData ADO.NET Provider for Snowflake.

This article demonstrates using the CData ADO.NET Provider for Snowflake in PowerBuilder, showcasing the ease of use and compatibility of these standards-based controls across various platforms and development technologies that support Microsoft .NET, including Appeon PowerBuilder.

This article shows how to create a basic PowerBuilder application that uses the CData ADO.NET Provider for Snowflake to perform reads and writes.

About Snowflake Data Integration

CData simplifies access and integration of live Snowflake data. Our customers leverage CData connectivity to:

  • Reads and write Snowflake data quickly and efficiently.
  • Dynamically obtain metadata for the specified Warehouse, Database, and Schema.
  • Authenticate in a variety of ways, including OAuth, OKTA, Azure AD, Azure Managed Service Identity, PingFederate, private key, and more.

Many CData users use CData solutions to access Snowflake from their preferred tools and applications, and replicate data from their disparate systems into Snowflake for comprehensive warehousing and analytics.

For more information on integrating Snowflake with CData solutions, refer to our blog: https://www.cdata.com/blog/snowflake-integrations.


Getting Started


  1. In a new WPF Window Application solution, add all the Visual Controls needed for the connection properties. Below is a typical connection string:

    Authscheme=Password;URL=https://myaccount.snowflakecomputing.com;User=Admin;Password=test123;Server=localhost;Database=Northwind;Warehouse=TestWarehouse;Account=Tester1;MFACode=YourMFACode

    To connect to Snowflake:

    1. Set User and Password to your Snowflake credentials and set the AuthScheme property to PASSWORD or OKTA.
    2. Set URL to the URL of the Snowflake instance (i.e.: https://myaccount.snowflakecomputing.com).
    3. Set Warehouse to the Snowflake warehouse.
    4. (Optional) Set Account to your Snowflake account if your URL does not conform to the format above.
    5. (Optional) Set Database and Schema to restrict the tables and views exposed.
    6. (Optional) If MFA is enabled on your Snowflake account (via Duo Security), set MFACode to the passcode generated by your Duo authenticator app.

    See the Getting Started guide in the CData driver documentation for more information.

  2. Add the DataGrid control from the .NET controls.
  3. Configure the columns of the DataGrid control. Below are several columns from the Account table: 
    <DataGrid AutoGenerateColumns="False" Margin="13,249,12,14" Name="datagrid1" TabIndex="70" ItemsSource="{Binding}">
<DataGrid.Columns>
 <DataGridTextColumn x:Name="idColumn" Binding="{Binding Path=Id}" Header="Id" Width="SizeToHeader" />
 <DataGridTextColumn x:Name="nameColumn" Binding="{Binding Path=Id}" Header="Id" Width="SizeToHeader" />
		...
	</DataGrid.Columns>
</DataGrid>
  4. Add a reference to the CData ADO.NET Provider for Snowflake assembly.

Connect the DataGrid

Once the visual elements have been configured, you can use standard ADO.NET objects like Connection, Command, and DataAdapter to populate a DataTable with the results of an SQL query: 

System.Data.CData.Snowflake.SnowflakeConnection conn 
conn = create System.Data.CData.Snowflake.SnowflakeConnection(connectionString)

System.Data.CData.Snowflake.SnowflakeCommand comm 
comm = create System.Data.CData.Snowflake.SnowflakeCommand(command, conn)

System.Data.DataTable table
table = create System.Data.DataTable

System.Data.CData.Snowflake.SnowflakeDataAdapter dataAdapter
dataAdapter = create System.Data.CData.Snowflake.SnowflakeDataAdapter(comm)
dataAdapter.Fill(table)	
datagrid1.ItemsSource=table.DefaultView

The code above can be used to bind data from the specified query to the DataGrid.