Build a Simple VCL Application for SAP HANA XS Advanced データ

Embarcadero RAD Studio provides a development environment for Delphi and C++Builder applications. With the CData ODBC Driver for SAP HANA XS Advanced, you gain access to live SAP HANA XS Advanced データ within RAD Studio, abstracting the data into tables, views, and stored procedures that can be used to retrieve SAP HANA XS Advanced データ. This article will walk through connecting to SAP HANA XS Advanced and creating a simple VCL application with the Form Designer.

Create a Connection to SAP HANA XS Advanced データ

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

SAP HANA XSA 接続プロパティの取得・設定方法

SAP HANA XSA はOAuth 認証標準を利用しています。接続する前に、SAP HANA XSA OData サービスを確立する必要があります。ヘルプドキュメントの「カスタムOAuth アプリの作成」セクションを参照してください。

OAuthPassword グラント種別を使用してSAP HANA XSA に接続するには、以下を設定します。

• OAuthClientId：UAA サービスJSON ファイルで指定されたClient Id に設定。
• OAuthClientSecret：UAA サービスJSON ファイルで指定されたClient Secret に設定。
• Url：OData サービスエンドポイントに設定。
• XSUAAURL：UAA サービスURL に設定。
• User：アカウントのユーザー名に設定。
• Password：アカウントのパスワードに設定。

OData サービスを設定したら、カスタムクレデンシャルを使用して接続を確立できます。

You can then follow the steps below to use the Data Explorer to create a FireDAC connection to SAP HANA XS Advanced データ.

1. In a new VCL Forms application, expand the FireDAC node in the Data Explorer.
2. Right-click the ODBC Data Source node in the Data Explorer.
3. Click Add New Connection.
4. Enter a name for the connection.
5. In the FireDAC Connection Editor that appears, set the DataSource property to the name of the ODBC DSN for SAP HANA XS Advanced.

Create VCL Applications with Connectivity to SAP HANA XS Advanced データ

Follow the procedure below to start executing queries to SAP HANA XS Advanced データ from a simple VCL application that displays the results of a query in a grid.

1. Drop a TFDConnection component onto the form and set the following properties:

   • ConnectionDefName: Select the FireDAC connection to SAP HANA XS Advanced データ.
   • Connected: Select True from the menu and, in the dialog that appears, enter your credentials.

2. Drop a TFDQuery component onto the form and set the properties below:

   • Connection: Set this property to the TFDConnection component, if this component is not already specified.

   • SQL: Click the button in the SQL property and enter a query. For example:

     SELECT , FROM WHERE = ''
   • Active: Set this property to true.

3. Drop a TDataSource component onto the form and set the following property:

   • DataSet: In the menu for this property, select the name of the TFDQuery component.

4. Drop a TDBGrid control onto the form and set the following property:

   • DataSource: Select the name of the TDataSource.
5. Drop a TFDGUIxWaitCursor onto the form — this is required to avoid a run-time error.

You now have an executable application that displays the results of the SQL Query set in the TFDQuery object.

Related Articles

Below you can find other articles for using the CData ODBC Driver with RAD Studio, Delphi, and C++ Builder.

• DataBind Controls to SAP HANA XS Advanced データ in C++Builder
• DataBind Controls to SAP HANA XS Advanced データ in Delphi
• Viewing SAP HANA XS Advanced データ in RAD Studio Data Explorer