Question

说我有2个物体MY_OBJ，MY_NESTED_TABLE_OBJ

CREATE OR REPLACE TYPE MY_NESTED_TABLE_OBJ IS TABLE OF VARCHAR2(100);

CREATE OR REPLACE TYPE MY_OBJ AS OBJECT (
    simple_atribute NUMBER(6),
    table_attribute MY_NESTED_TABLE_OBJ,
    MEMBER PROCEDURE doStuff(text VARCHAR2)
) NOT FINAL INSTANTIABLE;

MY_OBJ的表

CREATE TABLE TBL_MY_OBJ OF MY_OBJ
(  CONSTRAINT PK_simple_atribute PRIMARY KEY(simple_atribute))
NESTED TABLE table_attribute STORE AS attribute_nst;

如何将VARCHAR2（100）插入属于table_attribute的嵌套表中？什么是sintax ??

执行简单的插入，例如：INSERT INTO attribute_nst VALUES ('some text');会出错

无法引用嵌套表列的存储表

我想要的是从PROCEDURE doStuff（text VARCHAR2）中的插入，我试过了：

INSERT INTO SELF.attribute_nst VALUES (text); INSERT INTO attribute_nst VALUES (text); INSERT INTO table_attribute VALUES (text);

...和其他组合，没有什么，所以请帮助！

Answer 1

SQL> CREATE OR REPLACE TYPE BODY MY_OBJ AS
  2    member procedure doStuff(text varchar2) is
  3    begin
  4      table_attribute.extend(1);
  5      table_attribute(table_attribute.count) := text;
  6    end;
  7  end;
  8  /

Type body created.

SQL> declare
  2     l_my_obj My_Obj := My_Obj(1,MY_NESTED_TABLE_OBJ());
  3  begin
  4    l_my_obj.doStuff('abc');
  5    l_my_obj.doStuff('def');
  6
  7    insert into tbl_my_obj values (l_my_obj);
  8  end;
  9  /

PL/SQL procedure successfully completed.

SQL> select * from tbl_my_obj;

SIMPLE_ATRIBUTE
---------------
TABLE_ATTRIBUTE
------------------------------------------------------------
              1
MY_NESTED_TABLE_OBJ('abc', 'def')

Answer 2

试试这个插入到tbl_my_obj值（1，new my_nested_table_obj（text1，text2））;

Oracle，对象表＆amp;嵌套表

2 个答案: