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Oracle Tutorials - Loop through a Cursor Variable

By: FYIcenter.com

(Continued from previous topic...)

How To Loop through a Cursor Variable?

Once a cursor variable is opened with a query statement, it will have the same attributes as a normal cursor and it can be used in the same way a normal cursor too. The following sample script shows you how to loop through a cursor variable:

CREATE OR REPLACE PROCEDURE FYI_CENTER AS
  TYPE emp_ref IS REF CURSOR RETURN employees%ROWTYPE;
  emp_cur emp_ref;
  emp_rec employees%ROWTYPE;
BEGIN
  OPEN emp_cur FOR SELECT * FROM employees
    WHERE manager_id = 101;
  LOOP
    FETCH emp_cur INTO emp_rec;
    EXIT WHEN emp_cur%NOTFOUND;
    DBMS_OUTPUT.PUT_LINE('Name = ' || 
      emp_rec.first_name || ' ' || emp_rec.last_name); 
  END LOOP; 
  CLOSE emp_cur;
END;
/
Name = Nancy Greenberg
Name = Jennifer Whalen
Name = Susan Mavris
Name = Hermann Baer
Name = Shelley Higgins

(Continued on next topic...)

  1. What Is a Cursor?
  2. How Many Types of Cursors Supported in PL/SQL?
  3. What Is the Implicit Cursor?
  4. How To Use Attributes of the Implicit Cursor?
  5. How To Loop through Data Rows in the Implicit Curosr?
  6. How To Define an Explicit Cursor?
  7. How To Open and Close an Explicit Cursor?
  8. How To Retrieve Data from an Explicit Cursor?
  9. How To Retrieve Data from a Cursor to a RECORD?
  10. How To Use FETCH Statement in a Loop?
  11. How To Use an Explicit Cursor without OPEN Statements?
  12. Can Multiple Cursors Being Opened at the Same Time?
  13. How To Pass a Parameter to a Cursor?
  14. What Is a Cursor Variable?
  15. How To Define a Cursor Variable?
  16. How To Open a Cursor Variable?
  17. How To Loop through a Cursor Variable?
  18. How To Pass a Cursor Variable to a Procedure?
  19. Why Cursor Variables Are Easier to Use than Cursors?

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