Oracle PL/SQL - Looping through multiple records in cursor

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Introduction

%NOTFOUND is a special cursor variable that returns TRUE when the last fetch to that cursor does not return any records.

Demo

SQL>
SQL> drop table emp;

Table dropped.--  www  . j a  v  a 2s . co  m

SQL> create table emp(
  2    empno    number(4,0),
  3    ename    varchar2(10),
  4    job      varchar2(9),
  5    mgr      number(4,0),
  6    hiredate date,
  7    sal      number(7,2),
  8    comm     number(7,2),
  9    deptno   number(2,0)
 10  );

Table created.
SQL>
SQL> insert into emp values(7839, 'KING', 'PRESIDENT', null, to_date('17-11-1981','dd-mm-yyyy'), 5000, null, 10);
SQL> insert into emp values(7698, 'BLAKE', 'MANAGER', 7839,to_date('1-5-1981','dd-mm-yyyy'), 2850, null, 30);
SQL> insert into emp values(7782, 'CLARK', 'MANAGER', 7839,to_date('9-6-1981','dd-mm-yyyy'), 2450, null, 10);
SQL> insert into emp values(7566, 'JONES', 'MANAGER', 7839,to_date('2-4-1981','dd-mm-yyyy'), 2975, null, 20);
SQL> insert into emp values(7788, 'SCOTT', 'ANALYST', 7566,to_date('13-JUL-87','dd-mm-rr') - 85, 3000, null, 20);
SQL>
SQL> declare
  2         cursor c_emp is
  3            select *
  4               from emp;
  5         r_emp c_emp%ROWTYPE;
  6  begin
  7         open c_emp;
  8         loop
  9               fetch c_emp into r_emp;
 10               exit when c_emp%NOTFOUND;
 11               DBMS_OUTPUT.put_line(r_emp.eName);
 12         end loop;
 13         close c_emp;
 14  end;
 15  /
KING
BLAKE
CLARK
JONES
SCOTT

PL/SQL procedure successfully completed.
SQL>

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