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Oracle Tutorials - Use an Explicit Cursor without OPEN Statements

By: FYIcenter.com

(Continued from previous topic...)

How To Use an Explicit Cursor without OPEN Statements?

If you want to open a cursor and loop through its data rows in quick way, you can use the FOR ... IN ... LOOP statement in the same way as the implicit cursor. The following tutorial exercise gives you a good example:

CREATE OR REPLACE PROCEDURE FYI_CENTER AS
  CURSOR emp_cur IS SELECT * FROM employees
    WHERE manager_id = 101;
BEGIN
  FOR row IN emp_cur LOOP
    DBMS_OUTPUT.PUT_LINE('Name = ' || 
      row.first_name || ' ' || row.last_name); 
  END LOOP; 
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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