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Connect to Presto Data from PowerBuilder

This article demonstrates how to use the CData ODBC Driver for Presto to connect to Presto data and execute queries in PowerBuilder.

The CData ODBC Driver for Presto can be used from any platform or development technology that supports ODBC, including Sybase PowerBuilder. This article shows how to connect to Presto data and execute queries from the Database Painter and controls such as the DataWindow.

※製品について詳しい情報をご希望の方は以下からお進みください。

Create a Profile for the ODBC Driver for Presto

Follow the steps below to use the Database Painter tool to create a database profile based on an ODBC DSN (data source name) for Presto. In the Database Painter, you can use wizards and the UI to work with Presto data.

  1. If you have not already done so, create an ODBC DSN for Presto. The DSN contains the connection properties required to connect to Presto data. You can use the Microsoft ODBC Data Source Administrator to create and configure DSNs. This is the last step of installing the driver. Required connection properties are the following:
    • Server
    • Port

    Presto への接続には、まずはServer およびPort を接続プロパティとして設定します。それ以外の追加項目は接続方式によって異なります。

    TLS/SSL を有効化するには、UseSSL をTRUE に設定します。

    LDAP で認証

    LDAP で認証するには、次の接続プロパティを設定します:

    • AuthScheme: LDAP に設定。
    • User: LDAP で接続するユーザー名。
    • Password: LDAP で接続するユーザーのパスワード。

    Kerberos 認証

    KERBEROS 認証を使う場合には、以下を設定します:

    • AuthScheme: KERBEROS に設定。
    • KerberosKDC: 接続するユーザーのKerberos Key Distribution Center (KDC) サービス。
    • KerberosRealm: 接続するユーザーのKerberos Realm 。
    • KerberosSPN: Kerberos Domain Controller のService Principal Name。
    • KerberosKeytabFile: Kerberos principals とencrypted keys を含むKeytab file。
    • User: Kerberos のユーザー。
    • Password: Kerberos で認証するユーザーのパスワード。
    See the help documentation for a guide to creating a Presto DSN.
  2. In PowerBuilder, click Tools -> Database Painter.
  3. In the Objects window in the Database Painter, right-click the ODBC node and click New Profile.
  4. On the Connection tab, enter a name for the profile and select the Presto DSN in the Data Source menu.
  5. To view and modify a table, right-click a table and then click Edit Data -> Grid.

Using Presto Data with PowerBuilder Controls

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

SQLCA.DBMS = "ODBC" SQLCA.DBParm = "ConnectString='DSN=CData Presto Source'" CONNECT USING SQLCA; dw_customer.SetTransObject(SQLCA); dw_customer.Retrieve();
 
 
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