嵌套 table 数据检索

Question

我有类似 table 的嵌套 table 列：

create type hobbies_tab as table of varchar2(20);

create table Person(id Number,name varchar2(20),hobbies hobbies_tab) NESTED TABLE HOBBIES STORE AS TAB_HOBBIES;

insert into person values(2,'Sita',hobbies_tab('dancing','books'));

insert into person values(1,'Palash',hobbies_tab('Cricket','football'));

insert into person values(3,'sham',hobbies_tab('Cricket','dancing'));

想select有'dancing'爱好的人，不知道select查询的where子句写什么

有人可以帮忙吗？

Answer 1

select p.name
    from person p, table(p.hobbies) h
        where h.column_value = 'dancing';

或者如果值可以是 Dancing/DANCING/Riverdancing，则 where 子句可以是：

where lower(h.column_value) like '%dancing%'

嵌套 table 数据检索

Nested table data retrieval

oracle10g