ORA-22997: VARRAY | OPAQUE stored as LOB is not specified at the table level

文档解释

ORA-22997: VARRAY | OPAQUE stored as LOB is not specified at the table level

Cause: An attempt was made to specify a VARRAY|OPAQUE column to be stored as LOB at the partition/subpartition/template level. However the VARRAY|OPAQUE column was not specified to be stored as LOB at the table level when the table was created.

Action: Specify the VARRAY | OPAQUE column to be stored as LOB at the table level when the table is created. Alternatively, do not specify the VARRAY | OPAQUE column to be stored as LOB at the partition/subpartition/template level if it is not specified at the table level when the table is created.

ORA-22997: VARRAY | OPAQUE stored as LOB is not specified at the table level

该错误提示在创建数据表时，将VARRAY和OPAQUE对象存储在LOB中，但在表级上没有指定这一点。

官方解释

当从表级LOB字段分配容器时，出现ORA-22997错误，这不允许混合使用VARRAY/OPAQUE和LOB。

常见案例

此错误可能是在创建表时发生的，例如：

CREATE TABLE example

(

id int,

Name varchar(50)

);

Create table test

(

Test_Type VARRAY OPAQUE store as lob

)

一般处理方法及步骤

1、要解决该错误，必须修改表，使在表级别指定VARRAY/OPAQUE存储在LOB中：

Create table test

(

Test_Type VARRAY OPAQUE store as lob (cascell_action)

)

2、使用DROP LOB语句删除LOB列，并使用ALTER TABLE替换它们：

ALTER TABLE test DROP LOB (Test_Type);

3、重新创建LOB字段：

ALTER TABLE test

ADD (Test_Type VARRAY OPAQUE store as lob(cascell_action));