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Build a Simple VCL Application for SAS Data Sets データ
How to build a simple VCL Application to view SAS Data Sets データ in RAD Studio using the CData ODBC Driver for SAS Data Sets.
最終更新日：2023-06-12Embarcadero RAD Studio provides a development environment for Delphi and C++Builder applications. With the CData ODBC Driver for SAS Data Sets, you gain access to live SAS Data Sets データ within RAD Studio, abstracting the data into tables, views, and stored procedures that can be used to retrieve and update SAS Data Sets データ. This article will walk through connecting to SAS Data Sets and creating a simple VCL application with the Form Designer.
Create a Connection to SAS Data Sets 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.
SAS DataSets ファイルに接続するには、次の接続プロパティを設定します。
- URI: .sas7bdat リソースを含むフォルダに設定。現時点では、ローカルファイルのみをサポートしています。
You can then follow the steps below to use the Data Explorer to create a FireDAC connection to SAS Data Sets データ.
- In a new VCL Forms application, expand the FireDAC node in the Data Explorer.
- Right-click the ODBC Data Source node in the Data Explorer.
- Click Add New Connection.
- Enter a name for the connection.
- In the FireDAC Connection Editor that appears, set the DataSource property to the name of the ODBC DSN for SAS Data Sets.
Create VCL Applications with Connectivity to SAS Data Sets データ
Follow the procedure below to start executing queries to SAS Data Sets データ from a simple VCL application that displays the results of a query in a grid.
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Drop a TFDConnection component onto the form and set the following properties:
- ConnectionDefName: Select the FireDAC connection to SAS Data Sets データ.
- Connected: Select True from the menu and, in the dialog that appears, enter your credentials.
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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 name, borough FROM restaurants WHERE cuisine = 'American'- Active: Set this property to true.
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.
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Drop a TDBGrid control onto the form and set the following property:
- DataSource: Select the name of the TDataSource.
- 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.
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