December 2002
Intermediate to advanced
928 pages
85h 29m
English
There are a number of restrictions on cursor variables:
You cannot declare a package-level cursor variable. (You can declare such variables in packaged procedures and functions, however.)
You cannot assign NULLs to a cursor variable nor use comparison operators to test for equality, inequality, or nullity.
Neither database columns nor collections can store cursor variables.
You cannot use remote procedure calls (RPCs) to pass cursor variables from one server to another.