Reproducable Error with script SYS.I_PLSCOPE_SIG_IDENTIFIER$

Question

Hi Oracle,
I get an error when running attached script:
The error message is:
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code, arguments: [kqlidchg1], [], [], [], [], [], [], [], [], [], [], []
ORA-00604: error occurred at recursive SQL level 1
ORA-00001: unique constraint (SYS.I_PLSCOPE_SIG_IDENTIFIER$) violated
00603. 00000 - "ORACLE server session terminated by fatal error"
*Cause:    An ORACLE server session is in an unrecoverable state.
*Action:   Login to ORACLE again so a new server session will be created
DROP SEQUENCE T_TEAM_ID;
DROP SEQUENCE T_COMPANY_ID;
DROP TABLE t_company CASCADE CONSTRAINTS
DROP TABLE t_team CASCADE CONSTRAINTS
CREATE TABLE t_company
id INTEGER NOT NULL ,
name VARCHAR2 (20) NOT NULL
ALTER TABLE t_company
ADD CONSTRAINT PK_company PRIMARY KEY ( id ) ;
CREATE TABLE t_team
id INTEGER NOT NULL ,
company_id INTEGER NOT NULL ,
name VARCHAR2 (20) NOT NULL
ALTER TABLE t_team
ADD CONSTRAINT PK_team PRIMARY KEY ( id ) ;
ALTER TABLE t_team
ADD CONSTRAINT FK_t_team_t_company FOREIGN KEY
company_id
REFERENCES t_company
id
CREATE SEQUENCE T_COMPANY_ID
NOCACHE
ORDER ;
CREATE SEQUENCE T_TEAM_ID
NOCACHE
ORDER ;
CREATE OR REPLACE TRIGGER t_team_BI
BEFORE INSERT ON t_team
FOR EACH ROW
WHEN (NEW.id IS NULL)
BEGIN
SELECT T_TEAM_ID.NEXTVAL INTO :NEW.id FROM DUAL;
END;
CREATE OR REPLACE TRIGGER t_company_BI
BEFORE INSERT ON t_company
FOR EACH ROW
WHEN (NEW.id IS NULL)
BEGIN
SELECT T_COMPANY_ID.NEXTVAL INTO :NEW.id FROM DUAL;
END;
The error is thrown for the CREATE OR REPLACE TRIGGER and also comes up when creating the rest 1st, logging of and logging in again.
As it seems to be a serious error (I'd never expect it to show) and I don't now how to solve it, I wrote you this bug report.
I'm on Win7 Pro and using SQL Developer 3.0.04. Oracle version installed is:
SELECT * FROM V$VERSION
where banner like 'Oracle%';
BANNER
Oracle Database 11g Express Edition Release 11.2.0.2.0 - Production
Any advise or idea how to solve the error?
Thank you,
Blama

Answer 1

Error with script SYS.<...>Using sysdba connections for schemas is strongly discouraged.
Creating tables in the system tablespace that have no relation to the sys and system schemas brings its own set of admin headaches, sysdba should only be used to shutdown or startup an instance.
Or if there is a specific SYS object that needs to have permissions granted that cannot be done via a user with the DBA role privilege (i.e. SYSTEM), that should be the only time a sysdba connection is needed.
Also, beginning with 11g the pl/sql for setting a column with a sequence value can be done directly, no 'select ... into ... from dual;' needed.
begin
  :new.<column> := <sequence>.nextval;
end [<trigger name>];