using %ROWCOUNT as an incremental rowcount : Cursor Attributes « Cursor « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. Cursor
3. Cursor Attributes

SQL>
SQL>
SQL>
SQL> create table product(
  2     product_id number(4)     not null,
  3     product_description varchar2(20) not null
  4  );

Table created.

SQL>
SQL> insert into product values (1,'Java');

1 row created.

SQL> insert into product values (2,'Oracle');

1 row created.

SQL> insert into product values (3,'C#');

1 row created.

SQL> insert into product values (4,'Javascript');

1 row created.

SQL> insert into product values (5,'Python');

1 row created.

SQL>
SQL>
SQL> create table company(
  2     product_id        number(4)    not null,
  3     company_id          NUMBER(8)    not null,
  4     company_short_name  varchar2(30) not null,
  5     company_long_name   varchar2(60)
  6  );

Table created.

SQL> insert into company values(1,1001,'A Inc.','Long Name A Inc.');

1 row created.

SQL> insert into company values(1,1002,'B Inc.','Long Name B Inc.');

1 row created.

SQL> insert into company values(1,1003,'C Inc.','Long Name C Inc.');

1 row created.

SQL> insert into company values(2,1004,'D Inc.','Long Name D Inc.');

1 row created.

SQL> insert into company values(2,1005,'E Inc.','Long Name E Inc.');

1 row created.

SQL> insert into company values(2,1006,'F Inc.','Long Name F Inc.');

1 row created.

SQL>
SQL>
SQL>
SQL>
SQL> DECLARE
  2  CURSOR cursorValue IS
  3    SELECT h.product_description,o.company_short_name
  4    FROM company o,product h
  5    WHERE o.product_id =h.product_id
  6    ORDER by 2;
  7    num_total_rows NUMBER;
  8  BEGIN
  9    FOR idx IN cursorValue LOOP
 10      IF cursorValue%ROWCOUNT =1 THEN
 11        dbms_output.put_line(rpad('-',20,'-')||' '||rpad('-',30,'-'));
 12      END IF;
 13      dbms_output.put_line(rpad(idx.product_description,20,' ')||' '||
 14      rpad(idx.company_short_name,30,' '));
 15      num_total_rows :=cursorValue%ROWCOUNT;
 16    END LOOP;
 17    IF num_total_rows >0 THEN
 18      dbms_output.new_line;
 19      dbms_output.put_line('Total Organizations = '||to_char(num_total_rows));
 20    END IF;
 21  END;
 22  /
-------------------- ------------------------------
Java                 A Inc.
Java                 B Inc.
Java                 C Inc.
Oracle               D Inc.
Oracle               E Inc.
Oracle               F Inc.
Total Organizations = 6

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL> drop table product;

Table dropped.

SQL>
SQL> drop table company;

Table dropped.