5.1. Common Package Elements
In providing online help, all of the PL/Vision packages take advantage of the PLVhlp utility. This is accomplished by including a help procedure in each package; the header of this procedure is as follows:
PROCEDURE help (topic_in IN VARCHAR2 := NULL)
You can therefore obtain "top-level" help for any documented package in PL/Vision via the following command (where PLVpkg is the name of the package):
SQL> exec PLVpkg.help
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