Usage restrictions v16
The following are restrictions on cursor variable usage:
- You can't use comparison operators to test cursor variables for equality, inequality, null, or not null.
- You can't assign null to a cursor variable.
- You can't store the value of a cursor variable in a database column.
- Static cursors and cursor variables aren't interchangeable. For example, you can't use a static cursor in an
The table shows the permitted parameter modes for a cursor variable used as a procedure or function parameter. This use depends on the operations on the cursor variable in the procedure or function.
For example, if a procedure performs all three operations—
CLOSE—on a cursor variable declared as the procedure’s formal parameter, then that parameter must be declared with
IN OUT mode.