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Creación de un valor de columna de ID de generación de disparador antes de insertar cuando se crean nuevas tablas

funciona bien si pongo el nombre del esquema en el DDL.

SQL> connect sys/test as sysdba
Connected.
SQL> CREATE OR REPLACE TRIGGER after_create_table_trigger
  2  AFTER CREATE ON TEST.SCHEMA
  3  DECLARE
  4  TABLE_NAME VARCHAR2(100);
  5  BEGIN
  6  IF ORA_DICT_OBJ_TYPE = 'TABLE' THEN
  7  SELECT ORA_DICT_OBJ_NAME INTO TABLE_NAME FROM DUAL;
  8  EXECUTE IMMEDIATE
  9  ('CREATE OR REPLACE TRIGGER ID_TABLE_GEN
 10    BEFORE INSERT ON TEST.' || TABLE_NAME ||
 11    ' FOR EACH ROW
 12     BEGIN
 13      SELECT TEST.AE_IDSEQ.NEXTVAL
 14       INTO :new.ID
 15       FROM dual;
 16     END;');
 17  END IF;
 18  END;
 19  /

Trigger created.

SQL> connect test/test
Connected.
SQL> create table mytab(id number primary key, a varchar2(1));

Table created.

SQL> insert into mytab (a) values ('a');

1 row created.

SQL> select * From mytab;

        ID A
---------- -
         1 a


SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production

PD. no hay necesidad de hacer

SELECT ORA_DICT_OBJ_NAME INTO TABLE_NAME FROM DUAL;

simplemente péguelo en el comando.

CREATE OR REPLACE TRIGGER ID_TABLE_GEN
  BEFORE INSERT ON APPROOT.' || ORA_DICT_OBJ_NAME ||