Consider the following one-dimensional ARRAY data type and table.
CREATE TYPE phonenumbers AS VARRAY(20) OF CHAR(10); CREATE TABLE employee_info (eno INTEGER, phonelist phonenumbers);
The table is populated with the following values:
/* The first 2 elements are populated; the rest are uninitialized. */ INSERT INTO employee_info VALUES (1, phonenumbers('1112223333', '6195551234')); /* Empty ARRAY instance */ INSERT INTO employee_info VALUES (2, phonenumbers());
The following query returns the highest possible subscript value in the phonelist array.
SELECT eno, phonelist.OLIMIT() FROM employee_info;
The following is the result of the query.
ENO phonelist.OLIMIT() --- ------------------ 1 20 2 20
The following is the same query using function-style syntax.
SELECT eno, OLIMIT(phonelist) FROM employee_info;