An example of COUNT method : Table of Number « Collections « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. Collections
3. Table of Number

SQL> DECLARE
  2    TYPE numberTabletype IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
  3    myTable numberTabletype;
  4  BEGIN
  5    FOR idx IN 1..10 LOOP
  6      myTable(idx):=(2**idx)+1;
  7    END LOOP;
  8
  9    FOR idx IN 1..myTable.COUNT LOOP
 10      dbms_output.put_line(to_char(myTable(idx)));
 11    END LOOP;
 12
 13  END;
 14  /
3
5
9
17
33
65
129
257
513
1025

PL/SQL procedure successfully completed.