The Report Builder 2.0 gets displayed as shown then Double click the Table or Matrix icon.
Configuring the data source.
This displays the New Table or Matrix window as shown.
Click on the New... button.
This brings up the Data Source Properties window as shown. Click on the drop-down handle for "Select connection type:" as shown. Then Click on the Build... button.
Fill the Server Name and Select or enter the data base name then click on the Test connection--> OK.
After completing the data source connection configuration above then click next to design a query for your report.
understanding-functions-in-report 2.0 PART 3