Question

我创建了customer_ty对象，其中包含一个名为＆＃34; deposit＆＃34;的嵌套表。

CREATE TYPE deposit_ty as object(
depNo number,
depCategory ref depcategory_ty,
amount number,
period number
)
/

这个＆＃39; depCategory＆＃39;引用另一个名为＆＃39; depcategory_tbl＆＃39;的表中的depcategory_ty。

CREATE TYPE deposit_ntty as table of depcategory_ty
/

CREATE TYPE address_ty as varray(3) of varchar2(20)
/

CREATE TYPE customer_ty as object(
custId varchar2(4),
custName varchar2(10),
address address_ty,
dob date,
deposits deposit_ntty
)
/

CREATE TABLE customer_tbl of customer_ty(
custId primary key)
nested table deposits store as cli_deposit_tbl
/

alter table cli_deposit_tbl
add scope for (depCategory) is depcategory_tbl
/

当我尝试为表添加范围时，会出现问题。它说;

add scope for (depCategory) is depcategory_tbl
               *
ERROR at line 2:
ORA-0094:"DEPCATEGORY":Inavalid Identifier

所有标识符都是正确的。这有什么问题？

Answer 1

您似乎错误地定义了deposit_ntty，并认为它是：

CREATE TYPE deposit_ntty as table of deposit_ty
/

通过这种改变，你的改变现在得到：

alter table cli_deposit_tbl
add scope for (depCategory) is depcategory_tbl
/

ORA-22892: scoped table "DEPCATEGORY_TBL" does not exist in schema "PUBLIC"

你可能已经有了，但它没有显示;在那里，改变有效：

CREATE TABLE depcategory_tbl of depcategory_ty;

Table DEPCATEGORY_TBL created.

alter table cli_deposit_tbl
add scope for (depCategory) is depcategory_tbl
/

Table CLI_DEPOSIT_TBL altered.

范围的标识符错误无效

1 个答案: