Each zone's respective package, patch, and product registry database completely describes all installed
software that is available on the zone. All dependency checking for installing additional
software or patches is performed without accessing any other zone's database, unless a
package or patch is being installed or removed on the global zone and
on one or more non-global zones. In this case, the appropriate non-global zone
database(s) must be accessed.
For more information about the database, see the pkgadm(1M) man page.