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This article demonstrates how to access OData services from PowerBuilder using the OData JDBC Driver.
The CData JDBC driver for OData 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 OData in PowerBuilder.
This article shows how to create a basic PowerBuilder application that uses the CData JDBC Driver for OData to perform reads and writes.
About OData Data Integration
CData simplifies access and integration of live OData services data. Our customers leverage CData connectivity to:
- Access OData versions 2.0, 3.0, and 4.0, working with legacy services and the latest features and capabilities.
- Leverage advanced query options, including $filter, $select, and $expand, enhancing data retrieval from 3rd party tools.
- Use Server-side execution of aggregation and grouping to minimize data transfer and boost performance.
- Authenticate securely using a variety of schemes, including Azure AD, digest, negotiate, NTLM, OAuth, and more means secure authentication with every connection.
- Use SQL stored procedures to manage OData service entities - listing, creating, and removing associations between entities.
Customers use CData's solutions to regularly integrate their OData services with preferred tools, such as Power BI, MicroStrategy, or Tableau, and to replicate data from OData services to their databases or data warehouses.
Getting Started
Connect to OData Services from PowerBuilder
Follow the steps below to use the Database Painter tool to create a database profile based on an JDBC URL for OData. 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.
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.
- Click Tools -> Database Painter.
- Right-click the JDBC node and click New Profile.
- 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.odata.ODataDriver
- URL: Enter the JDBC URL.
The User and Password properties, under the Authentication section, must be set to valid OData user credentials. In addition, you will need to specify a URL to a valid OData server organization root or OData services file.
Built-in Connection String Designer
For assistance in constructing the JDBC URL, use the connection string designer built into the OData JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.
java -jar cdata.jdbc.odata.jar
Fill in the connection properties and copy the connection string to the clipboard. A typical JDBC URL is below:
jdbc:odata:URL=http://services.odata.org/V4/Northwind/Northwind.svc;UseIdUrl=True;OData Version=4.0;Data Format=ATOM;
- To view and modify a table, right-click a table and then click Edit Data -> Grid.
Using OData Services 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 OData services into a DataWindow. You can add the following code to the open method:
SQLCA.DBMS = "JDBC"
SQLCA.AutoCommit = False
SQLCA.DBParm = "Driver='cdata.jdbc.odata.ODataDriver',URL='jdbc:odata:URL=http://services.odata.org/V4/Northwind/Northwind.svc;UseIdUrl=True;OData Version=4.0;Data Format=ATOM;";
CONNECT USING SQLCA;
dw_orders.SetTransObject(SQLCA);
dw_orders.Retrieve();