How To Define a Cursor Variable

Q

How To Define a Cursor Variable? - Oracle DBA FAQ - Working with Cursors in PL/SQL

✍: FYIcenter.com

A

To define cursor variable, you must decide which REF CURSOR data type to use. There are 3 ways to select a REF CURSOR data type:

Define your own specific REF CURSOR types using the TYPE ... RETURN statement.
Define your own generic REF CURSOR type using the TYPE ... statement.
Use the system defined REF CURSOR type: SYS_REFCURSOR.

The follwoing tutorial exercise defines 3 cursor variables in 3 different ways:

CREATE OR REPLACE PROCEDURE FYI_CENTER AS
  TYPE emp_ref IS REF CURSOR RETURN employees%ROWTYPE;
  TYPE any_ref IS REF CURSOR;
  emp_cur emp_ref;
  any_cur any_ref;
  sys_cur SYS_REFCURSOR;
BEGIN
  NULL;
END;
/

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