iReport Ultimate Guide - Nimsoft Library

iReport Ultimate GuideFigure 2-11Oracle Driver Loaded from an External JARResume the testing without closing iReport by copying the JDBC driver into the /lib directory and clicking Test again. iReportautomatically locates the required JAR file and loads the driver from it. In Chapter 11, I will explain the configurationmethods for various data sources in greater detail.If the test is successful, click the Save button to store the new connection.The connection will appear in the data source drop-down list in the main tool bar (Figure 2-12). Select it to make it the activeconnection.Another way to set the active connection is by opening the data source window (Figure 2-12):1. Select the Tools → Report data sources menu item (or by clicking the button on the tool bar next to the data sources dropdownlist).2. Select the data source that you want to make active:Figure 2-12Data Sources Window3. Click Set as default.The selected data source is the one used to fill the report and perform other operations, such as the acquisition of the fieldsselected through SQL queries. There is no strict binding between a report and a data source, so you can run a report withdifferent data sources, but only one at time. Later, we will see how subreports can be used to create a report that uses multipledata sources.24