The COUNT Function : Varray « Collections « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. Collections
3. Varray

The COUNT function returns the number of members in a VARRAY.

SQL>
SQL>
SQL> CREATE OR REPLACE TYPE mem_type IS VARRAY(10) of VARCHAR2(15)
  2  /

Type created.

SQL>
SQL>
SQL> CREATE TABLE club (Name VARCHAR2(10),
  2  Address VARCHAR2(20),
  3  City VARCHAR2(20),
  4  Phone VARCHAR2(8),
  5  Members mem_type)
  6  /

Table created.

SQL>
SQL>
SQL>
SQL> INSERT INTO club VALUES ('AL','111 First St.','Mobile',
  2  '222-2222', mem_type('Brenda','Richard'));

1 row created.

SQL>
SQL> INSERT INTO club VALUES ('FL','222 Second St.','Orlando',
  2  '333-3333', mem_type('Gen','John','Steph','JJ'));

1 row created.

SQL>
SQL>
SQL>
SQL> CREATE OR REPLACE PROCEDURE vartest IS
  2  CURSOR fcur IS
  3    SELECT city, members FROM club;
  4  BEGIN
  5    FOR j IN fcur LOOP
  6       IF j.members.exists(1) THEN
  7         dbms_output.put_line(j.City||' has '|| j.members.count||' members');
  8
  9         END IF;
 10      END LOOP;   /* end for j in fcur loop */
 11  END vartest;
 12  /

Procedure created.

SQL> exec vartest;
Mobile has 2 members
Orlando has 4 members

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL>
SQL> drop table club;

Table dropped.

SQL> drop type mem_type;

Type dropped.

SQL>