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Connect to FTP Data from PowerBuilder

This article demonstrates how to access FTP data from PowerBuilder using the FTP JDBC Driver.

The CData JDBC Driver for FTP is a standards-based control that can be used from any platform or development technology that supports JDBC, including PowerBuilder. This article shows how to use the CData JDBC Driver for FTP in PowerBuilder.

This article shows how to create a basic PowerBuilder application that uses the CData JDBC Driver for FTP to perform reads and writes.

Connect to FTP Data from PowerBuilder

Follow the steps below to use the Database Painter tool to create a database profile based on an JDBC URL for FTP. You can use a database profile to save connection properties. In the Database Painter, you can graphically manipulate data as well as execute SQL queries.

  1. Add the driver JAR to the PowerBuilder classpath. Set the CLASSPATH system environment variable to the path to the driver JAR, located in the lib subfolder of the installation directory.

    Note: If you are using PowerBuilder Classic, you can also add the path to the driver JAR by clicking Tools -> System Options -> Java.

  2. Click Tools -> Database Painter.
  3. Right-click the JDBC node and click New Profile.
  4. In the Database Profile Setup dialog, enter the following:
    • Profile Name: Enter a user-friendly name for the profile.
    • Driver Name: Enter the class name of the driver, cdata.jdbc.ftp.FTPDriver
    • URL: Enter the JDBC URL.

      To connect to FTP or SFTP servers, specify at least RemoteHost and FileProtocol. Specify the port with RemotePort.

      Set User and Password to perform Basic authentication. Set SSHAuthMode to use SSH authentication. See the Getting Started section of the data provider help documentation for more information on authenticating via SSH.

      Set SSLMode and SSLServerCert to secure connections with SSL.

      The data provider lists the tables based on the available folders in your FTP server. Set the following connection properties to control the relational view of the file system:

      • RemotePath: Set this to the current working directory.
      • TableDepth: Set this to control the depth of folders to list as views.
      • FileRetrievalDepth: Set this to retrieve and list files recursively from the root table.

      Stored Procedures are available to download files, upload files, and send protocol commands. See the Data Model chapter of the FTP data provider documentation for more information.

      Built-in Connection String Designer

      For assistance in constructing the JDBC URL, use the connection string designer built into the FTP JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

      java -jar cdata.jdbc.ftp.jar

      Fill in the connection properties and copy the connection string to the clipboard. A typical JDBC URL is below:

      jdbc:ftp:RemoteHost=MyFTPServer;
  5. To view and modify a table, right-click a table and then click Edit Data -> Grid.

Using FTP Data with PowerBuilder Controls

You can use standard PowerBuilder objects to connect to JDBC data sources and execute queries. The following example shows how to retrieve FTP data into a DataWindow. You can add the following code to the open method:

SQLCA.DBMS = "JDBC" SQLCA.AutoCommit = False SQLCA.DBParm = "Driver='cdata.jdbc.ftp.FTPDriver',URL='jdbc:ftp:RemoteHost=MyFTPServer;"; CONNECT USING SQLCA; dw_mydirectory.SetTransObject(SQLCA); dw_mydirectory.Retrieve();