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Oracle Tutorials - Open Multiple Cursors at the Same Time

By: FYIcenter.com

(Continued from previous topic...)

Can Multiple Cursors Being Opened at the Same Time?

Yes, multiple cursors can be opened at the same time. See the following example:

CREATE OR REPLACE PROCEDURE FYI_CENTER AS
  CURSOR emp_cur IS SELECT * FROM employees;
  emp_rec employees%ROWTYPE;
  CURSOR dpt_cur IS SELECT * FROM departments;
  dpt_rec departments%ROWTYPE;
BEGIN
  OPEN emp_cur;
  OPEN dpt_cur;
  FETCH emp_cur INTO emp_rec;
  FETCH dpt_cur INTO dpt_rec;
  DBMS_OUTPUT.PUT_LINE('Department name = ' || 
    dpt_rec.department_name); 
  DBMS_OUTPUT.PUT_LINE('Employee name = ' || 
    emp_rec.first_name || ' ' || emp_rec.last_name); 
  CLOSE emp_cur;
  CLOSE dpt_cur;
END;
/
Department name = Administration
Employee name = Steven King

(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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