○请问在oracle9i里,怎样想嵌入表里...... 请问在oracle9i里,怎样想嵌入表里插入数据和修改嵌入表的数据,谢谢,我摸索了好长时间,不得门道。oracle8i的参考书里的语句在oracle9i行不通,请各位指点。 create table test(a varchar2(10), b nested_tab_test) nested table b store as test1; 首先要插入一个空的嵌套表类型值。 insert into test(a,b) values('aaa',nested_tab_test()); 插入具体值 insert into table (select b from test where a='aaa') values('a01'); 如果是从别的表插入数据可以这么操作。 insert into test select 'aaa',cast(multiset(select a from test2 ) as nested_tab_test) from dual; 重点是把握插入一个嵌套表对应的类型对象。 |
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