PL/SQL Cursors For Loop

PL/SQL cursor FOR loop has one great advantage of loop continued until row not found. In sometime you require to use explicit cursor with FOR loop instead of use OPEN, FETCH, and CLOSE statement.
FOR loop iterate repeatedly and fetches rows of values from database until row not found.

Explicit Cursor FOR LOOP Example

following one emp_information table:

EMP_NO	EMP_NAME	EMP_DEPT	EMP_SALARY
1	Forbs ross	Web Developer	45k
2	marks jems	Program Developer	38k
3	Saulin	Program Developer	34k
4	Zenia Sroll	Web Developer	42k

Display employee number wise first two employee details emp,

Example Code

cursor_for_loop.sql

SQL>set serveroutput on
SQL>edit cursor_for_loop
DECLARE
 cursor c is select * from emp_information
 where emp_no <=2;
 tmp emp_information%rowtype;
BEGIN 
 OPEN c;
 FOR tmp IN c LOOP
 FETCH c into tmp;
 dbms_output.put_line('EMP_No:    '||tmp.emp_no);
 dbms_output.put_line('EMP_Name:  '||tmp.emp_name);
 dbms_output.put_line('EMP_Dept:  '||tmp.emp_dept);
 dbms_output.put_line('EMP_Salary:'||tmp.emp_salary);   
 END Loop;
CLOSE c;
END; 
/

Example Result

SQL>@cursor_for_loop
EMP_No:    1
EMP_Name:  Forbs ross
EMP_Dept:  Web Developer
EMP_Salary:45k
EMP_No:    2
EMP_Name:  marks jems
EMP_Dept:  Program Developer
EMP_Salary:38k

PL/SQL procedure successfully completed.