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SQL>
SQL> DECLARE
2 TYPE clientList IS TABLE OF VARCHAR2 (64);
3
4 group1 clientList := clientList ('Customer 1', 'Customer 2');
5 group2 clientList := clientList ('Customer 1', 'Customer 3', NULL);
6 group3 clientList := clientList ('Customer 3', NULL, 'Customer 1');
7 BEGIN
8 IF group1 = group2
9 THEN
10 DBMS_OUTPUT.put_line ('Group 1 = Group 2');
11 ELSIF group1 != group2
12 THEN
13 DBMS_OUTPUT.put_line ('Group 1 != Group 2');
14 END IF;
15
16 IF group2 != group3
17 THEN
18 DBMS_OUTPUT.put_line ('Group 2 != Group 3');
19 ELSIF group2 = group3
20 THEN
21 DBMS_OUTPUT.put_line ('Group 2 = Group 3');
22 END IF;
23 END;
24 /
PL/SQL procedure successfully completed.
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