使用Oracle字典视图发现PL / SQL包级别类型

CREATE OR REPLACE PACKAGE my_types AS
  TYPE t_cursor_type IS REF CURSOR;
  TYPE t_table_type IS TABLE OF some_table%rowtype;
END my_types;

我想正式发现t_cursor_type和t_table_type.它们似乎没有被列入

SYS.ALL_TYPES

通过“正式”,我的意思是我想要一些“正式的元数据”,即查询USER_SOURCE不会做到这一点.

从手册：

http://download.oracle.com/docs/cd/E11882_01/appdev.112/e17125/adfns_plscope.htm#ADFNS02204

http://download.oracle.com/docs/cd/E11882_01/server.112/e17110/initparams189.htm#REFRN10271

PL/Scope is a compiler-driven tool that collects data about identifiers in PL/SQL source code at program-unit compilation time and makes it available in static data dictionary views. The collected data includes information about identifier types,usages (declaration,definition,reference,call,assignment) and the location of each usage in the source code.

DEMO

CREATE OR REPLACE PACKAGE my_types AS
  TYPE t_cursor_type IS REF CURSOR;
  TYPE t_table_type IS TABLE OF employees%rowtype;
  type t_associative is table number index by  varchar2(20);
END my_types;

alter package  my_types compile plscope_settings='IDENTIFIERS:ALL' reuse settings;

select *
from   user_identifiers ui
where  ui.object_type = 'PACKAGE'
and    ui.usage = 'DECLARATION'
and    ui.usage_context_id = '1';


NAME                           SIGNATURE                        TYPE               OBJECT_NAME                    OBJECT_TYPE   USAGE         USAGE_ID       LINE        COL USAGE_CONTEXT_ID
------------------------------ -------------------------------- ------------------ ------------------------------ ------------- ----------- ---------- ---------- ---------- ----------------
T_ASSOCIATIVE                  9A18FE6BCB72110F39CED9E08B932ECB ASSOCIATIVE ARRAY  MY_TYPES                       PACKAGE       DECLARATION          4          4          8                1
T_TABLE_TYPE                   77067FE9732B492C166D38221DC3DF37 NESTED TABLE       MY_TYPES                       PACKAGE       DECLARATION          3          3          8                1
T_CURSOR_TYPE                  EDEC9260784B7721BC3F3DAB293F23DD REFCURSOR          MY_TYPES                       PACKAGE       DECLARATION          2          2          8                1

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