Trouble Creating View on External Table in Diff Schema

Question

I am unable to create a view in a different schema on an external table in a different schema, even when I am connected to my database as SYS as SYSDBA.
CREATE VIEW WH1.EXT1VIEW AS SELECT * FROM WH1.EXT1VIEW;
returns the error:
ORA-06564: object ER_ADMIN_DIR does not exist
I created a directory:
CREATE DIRECTORY ER_ADMIN_DIR AS 'C:\ER_Init';
Granted privs:
grant read,write on directory ER_ADMIN_DIR to public;
Created the external table EXT1 in a different schema WH1:
CREATE TABLE WH1.EXT1 (TABLE_NAME VARCHAR2(100), COLUMN_NAME VARCHAR2(100))
ORGANIZATION EXTERNAL (TYPE ORACLE_LOADER DEFAULT DIRECTORY SYS.ER_ADMIN_DIR
ACCESS PARAMETERS
(RECORDS DELIMITED BY NEWLINE
FIELDS TERMINATED BY ','
MISSING FIELD VALUES ARE NULL
LOCATION ('FILE1.TXT')
REJECT LIMIT UNLIMITED;
I can query from the table successfully connected as SYS:
SQL> select count(*) from wh1.ext1;
1008
1 row selected.
However when I try to create a view on that table connected as SYS:
CREATE VIEW WH1.EXT1VIEW AS SELECT * FROM WH1.EXT1VIEW;
I get the following error:
ORA-06564: object ER_ADMIN_DIR does not exist
I can connect over to the WH1 schema and create the view successfully, however due to a specific situation I need to be able to create the view from the SYS schema. I can create the view FORCE and it creates with compilation errors, however the view cannot be compiled successfully from SYS.
Is there a known bug on creating views on external tables remotely?
Thanks for any help!
Tina

Answer 1

I have been able to reproduce your error, using scott instead of sys, and resolve it, as demonstrated below. The combination that I found that worked consisted of having wh1 grant select on ext1 to scott explicitly and using set current_schema to wh1, so that ext1view did not require the wh1 qualifier.
scott@ORA92> CREATE USER wh1 IDENTIFIED BY wh1
  2  /
User created.
scott@ORA92> GRANT CONNECT, RESOURCE TO wh1
  2  /
Grant succeeded.
scott@ORA92> CREATE OR REPLACE DIRECTORY er_admin_dir AS 'c:\er_init'
  2  /
Directory created.
scott@ORA92> CREATE TABLE wh1.ext1
  2    (table_name  VARCHAR2(100),
  3       column_name VARCHAR2(100))
  4  ORGANIZATION EXTERNAL
  5    (TYPE ORACLE_LOADER
  6       DEFAULT DIRECTORY er_admin_dir
  7       ACCESS PARAMETERS
  8         (RECORDS DELIMITED BY NEWLINE
  9          FIELDS TERMINATED BY ','
10          MISSING FIELD VALUES ARE NULL)
11       LOCATION ('file1.txt'))
12  REJECT LIMIT UNLIMITED
13  /
Table created.
scott@ORA92> CREATE OR REPLACE VIEW wh1.ext1view AS SELECT * FROM wh1.ext1
  2  /
CREATE OR REPLACE VIEW wh1.ext1view AS SELECT * FROM wh1.ext1
ERROR at line 1:
ORA-06564: object ER_ADMIN_DIR does not exist
scott@ORA92> CONNECT wh1/wh1
Connected.
scott@ORA92> @ LOGIN
scott@ORA92> SET ECHO OFF
GLOBAL_NAME
[email protected]2
wh1@ORA92> GRANT SELECT ON ext1 TO scott
  2  /
Grant succeeded.
wh1@ORA92> CONNECT scott/tiger
Connected.
wh1@ORA92> @ LOGIN
wh1@ORA92> SET ECHO OFF
GLOBAL_NAME
[email protected]A92
scott@ORA92> ALTER SESSION SET CURRENT_SCHEMA = wh1
  2  /
Session altered.
scott@ORA92> CREATE OR REPLACE VIEW ext1view AS SELECT * FROM wh1.ext1
  2  /
View created.
scott@ORA92> ALTER SESSION SET CURRENT_SCHEMA = scott
  2  /
Session altered.
scott@ORA92> SELECT * FROM wh1.ext1view
  2  /
TABLE_NAME
---------------------------------------------------------COLUMN_NAME
---------------------------------------------------------tab1
col1
tab2
col2
scott@ORA92>