Connect to Greenplum Data from PowerBuilder

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Greenplum ADO.NET Provider

Rapidly create and deploy powerful .NET applications that integrate with Greenplum databases.

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This article demonstrates how to access Greenplum data from PowerBuilder using the CData ADO.NET Provider for Greenplum.

The CData ADO.NET providers are easy-to-use, standards-based controls that can be used from any platform or development technology that supports Microsoft .NET, including PowerBuilder. This article shows how to use the CData ADO.NET Provider for Greenplum in PowerBuilder.

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

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

    User=user;Password=admin;Database=dbname;Server=127.0.0.1;Port=5432;

    To connect to Greenplum, set the Server, Port (the default port is 5432), and Database connection properties and set the User and Password you wish to use to authenticate to the server. If the Database property is not specified, the default database for the authenticate user is used.

  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=Freight}" Header="Freight" Width="SizeToHeader" /> ... </DataGrid.Columns> </DataGrid>
  4. Add a reference to the CData ADO.NET Provider for Greenplum 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.Greenplum.GreenplumConnection conn conn = create System.Data.CData.Greenplum.GreenplumConnection(connectionString) System.Data.CData.Greenplum.GreenplumCommand comm comm = create System.Data.CData.Greenplum.GreenplumCommand(command, conn) System.Data.DataTable table table = create System.Data.DataTable System.Data.CData.Greenplum.GreenplumDataAdapter dataAdapter dataAdapter = create System.Data.CData.Greenplum.GreenplumDataAdapter(comm) dataAdapter.Fill(table) datagrid1.ItemsSource=table.DefaultView

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