如何在 Oracle PL/SQL 中选择 INTO 数组？

Question

我正在尝试将一组 id 保存在数组中：

declare
 cities_ids array_of_numbers;
begin
select id into cities_ids from objects where id = 1115464;
    FOR i IN 1..cities_ids.COUNT LOOP
        DBMS_OUTPUT.PUT_LINE(cities_ids(i));
    END LOOP;
end;

执行后，出现下一个错误：

ORA-00932: inconsistent datatypes. Expected UDT, got NUMBER.

请解释我做错了什么...

Answer 1

很简单：BULK COLLECT 不见了。

declare
 cities_ids array_of_numbers;
begin
select id BULK COLLECT into cities_ids from objects where id = 1115464;
    FOR i IN 1..cities_ids.COUNT LOOP
        DBMS_OUTPUT.PUT_LINE(cities_ids(i));
    END LOOP;
end;