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PCA Sales ODBC Driver
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PCA クラウド商魂・商管ODBC ドライバーは、ODBC 接続をサポートする任意のアプリケーション からライブなPCA クラウド商魂・商管データに直接接続できる強力なツールです。標準のODBC ドライバー インタフェースを使用して、データベースのようにPCA クラウド商魂・商管にアクセスし、顧客、商品、伝票などの読み出し、書き込み、および更新を実行できます。
The CData ODBC Driver for PCA Sales makes it easy to integrate connectivity to live PCA Sales データ with standard data access components in C++Builder. This article shows how to create a simple visual component library (VCL) application in C++Builder that connects to PCA Sales データ, executes queries, and displays the results in a grid. An additional section shows how to use FireDAC components to execute commands from code.
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.
PCA クラウド商魂・商管DX では、OAuth 2 認証標準を使います。
ユーザー資格情報の接続プロパティを設定せずに接続できます。接続に最小限必要な接続プロパティは、次のとおりです。
接続すると、CData 製品はデフォルトブラウザでPCA Accounting OAuth エンドポイントを開きます。ログインして、CData 製品にアクセス許可を与えます。CData 製品がOAuth プロセスを完了します。
ヘッドレスマシンの認証など、他のOAuth 認証フローについては、ヘルプドキュメントの「OAuth 認証の使用」を参照してください。
You can then follow the steps below to use the Data Explorer to create a FireDAC connection to PCA Sales.
Follow the procedure below to start querying PCA Sales データ from a simple VCL application that displays the results of a query in a grid.
Drop a TFDConnection component onto the form and set the following properties:
Drop a TFDQuery component onto the form and set the properties below:
SQL: Click the button in the SQL property and enter a query. For example:
SELECT SyohinCode, SyohinMei FROM MasterSms
Drop a TDataSource component onto the form and set the following property:
Drop a TDBGrid control onto the form and set the following property:
You can use the TFDConnection and TFQuery components to execute queries to PCA Sales データ. This section provides PCA Sales-specific examples of executing queries with the TFQuery component.
To connect to the data source, set the Connected property of the TFDConnection component to true. You can set the same properties from code:
FDConnection1->ConnectionDefName = "CData PCA Sales ODBC Source";
FDConnection1->Connected = true;
To connect the TFDQuery component to PCA Sales データ, set the Connection property of the component. When a TFDQuery component is added at design time, its Connection property is automatically set to point to a TFDConnection on the form, as in the application above.
To create a parameterized query, use the following syntax below:
FDQuery1->SQL->Text = "select * from MasterSms where syohinmei = :SyohinMei";
FDQuery1->ParamByName("syohinmei")->AsString = "Syohin";
query->Open();
The example above binds a string-type input parameter by name and then opens the dataset that results.
Preparing statements is costly in system resources and time. The connection must be active and open while a statement is prepared. By default, FireDAC prepares the query to avoid recompiling the same query over and over. To disable statement preparation, set ResourceOptions.DirectExecute to True; for example, when you need to execute a query only once.
To execute a query that returns a result set, such as a select query, use the Open method. The Open method executes the query, returns the result set, and opens it. The Open method will return an error if the query does not produce a result set.
FDQuery1->SQL->Text := "select * from MasterSms where syohinmei = :SyohinMei";
FDQuery1.ParamByName("syohinmei")->AsString = "Syohin";
FDQuery1->Open();
To execute a query that does not return a result set, use the ExecSQL method. The ExecSQL method will return an error if the query returns a result set. To retrieve the count of affected rows use the TFD.RowsAffected property.
FDQ.SQL.Text := "delete from MasterSms where Id = :Id";
FDQuery1->Params->Items[0]->AsString = "x12345";
FDQuery1->ExecSQL();
AnsiString i = FDQuery1->RowsAffected;
Below you can find other articles for using the CData ODBC Driver with RAD Studio, Delphi, and C++ Builder.
