Note: For the sub-reports, mainly for embedding information in different pages of the same display page.
Step one: create a child table
Step two: Add sheet2 table in the data source, click the data source 
, the pop-up to get the statement of the dataset acquired in input: "select * from sales," added plus sales table for the data source ds1.
Column of the table made in the work, the need to drag the workspace data set from the data source to the left, to the column above the column designated register, to the cell plus borders, cell center, to the following figure.
Step three: sub-display area in the Page Setup Reports
In many tables we need to use sub-reports, on demand, shows that in some areas of the page in full sail in a report or graph report sheets for reference. Select an area on the page.
Right choice "associated subform" opt-in box will sheet2 link subform, click "OK"
Click on the toolbar inside 
, you can preview it.
Step Four: Save
Click the File menu bar to save the template, template named sub-reports.
