Home >Online Product Documentation >Table of Contents >Using Breakpoints
The Stylus Studio debugger allows you to interrupt XQuery processing to gather information about variables and XQuery expression execution at particular points.
Alternative: In the Stylus Studio tool bar, click Breakpoints to display a list of breakpoints in all open files. You can selectively remove one or more, remove them all, or jump to one of them.
When your XQuery has one or more breakpoints set, start processing by clicking Start Debugging or pressing F5. When Stylus Studio reaches the first breakpoint, it suspends processing and activates the debugging tools. After you examine the information associated with that breakpoint (see Viewing Processing Information) you can choose to
You can also click Pause to suspend XQuery processing. Stylus Studio flags the line it was processing when you clicked Pause.
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or press F9. Stylus Studio inserts a blank stop sign 
to the left of the line with the breakpoint.
to display a list of breakpoints in all open files. You can selectively remove one or more, remove them all, or jump to one of them.
or pressing F5. When Stylus Studio reaches the first breakpoint, it suspends processing and activates the debugging tools. After you examine the information associated with that breakpoint (see 
or press F11.
or press F10.
or press Shift+F11.
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in the Stylus Studio tool bar, or click Cancel in the lower right corner of the XQuery editor, or press Shift+F5. 
to suspend XQuery processing. Stylus Studio flags the line it was processing when you clicked Pause.
