The Previewer displays on your screen how the printed version of your report will look. In the Previewer, you can scroll though a single page of report output, page through the entire report, and split the screen to view different sections of the same report concurrently. You can also perform the following actions:
Print the report |
Click |
Specify page setup settings |
Click |
Open a new Previewer |
Click |
Close the Previewer |
Click |
Zoom in |
Click |
Zoom out |
Click |
A physical page (or panel) is the size of a page that will be output by your printer. A logical page is the size of one page of your actual report (it can be any number of physical pages wide or long). The Previewer displays the logical pages of your report output, one at a time.
To display the Previewer:
To speed the execution of your report, avoid "fetching ahead" when sending report output to the Previewer or Paper Design view. The following items can result in fetching ahead when referenced before the data on which they rely:
total number of pages/panels
grand totals
break columns that are formulas
break columns that have Value if Null specified
Matrix (cross-product) groups also cause fetching ahead. To cross-tabulate the data, Oracle Reports must first fetch all of the data.
It should be noted that while these items slow down the Previewer or Paper Design view, they do not affect performance when writing to a file or some other destination.
Note: A column can cause fetching ahead even if it is not displayed. For example, a grand total may not appear in the report output, but since it is in the report, fetching ahead may still occur when Oracle Reports calculates it.
Previewer (context-sensitive help topic)
Displaying report output in the Previewer
Printing a report from the Previewer
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