Function in 10g & 11g

Question

Hi all,
i have a function which is running fine in Oracle 10g But in 11g iam getting a error
FUNCTION START_date RETURN DATE AS
BEGIN
select TO_DATE(test_VALUE,'YYYYMMDDHH24:MI:SS') INTO test_start_time from tst_rslt  WHERE tst_NAME='VM_START_TIME';
RETURN vm_run_start_time;
EXCEPTION
     WHEN NO_DATA_FOUND THEN
        vm_run_start_time:=SYSDATE;
RETURN vm_run_start_time;
     WHEN OTHERS THEN
        RAISE_APPLICATION_ERROR(-20000, 'Error in START_date '|| sqlerrm ,TRUE);
       return NULL;
END;in 10g
SQL> select * from v$version;
BANNER
Oracle Database 10g Release 10.2.0.4.0 - Production
PL/SQL Release 10.2.0.4.0 - Production
CORE    10.2.0.4.0      Production
TNS for 32-bit Windows: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
SQL> SELECT testb.START_date  FROM DUAL;
START_date
02-SEP-10in 11g
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE    11.2.0.1.0      Production
TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
SQL>SELECT testb.START_date  FROM DUAL;
ERROR at line 1:
ORA-20000: Error in testb.START_date   ORA-01841: (full) year must be
between -4713 and +9999, and not be 0
ORA-06512: at "ULIM.testb", line 16741
ORA-01841: (full) year must be between -4713 and +9999, and not be 0

Answer 1

In Oracle 10g
SQL> select * from nls_session_parameters;
PARAMETER
VALUE
NLS_LANGUAGE
AMERICAN
NLS_TERRITORY
AMERICA
NLS_CURRENCY
$
PARAMETER
VALUE
NLS_ISO_CURRENCY
AMERICA
NLS_NUMERIC_CHARACTERS
NLS_CALENDAR
GREGORIAN
PARAMETER
VALUE
NLS_DATE_FORMAT
DD-MON-RR
NLS_DATE_LANGUAGE
AMERICAN
NLS_SORT
BINARY
PARAMETER
VALUE
NLS_TIME_FORMAT
HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT
DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT
HH.MI.SSXFF AM TZR
PARAMETER
VALUE
NLS_TIMESTAMP_TZ_FORMAT
DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY
$
NLS_COMP
BINARY
PARAMETER
VALUE
NLS_LENGTH_SEMANTICS
BYTE
NLS_NCHAR_CONV_EXCP
FALSE
17 rows selected.In Oracle 11g
SQL> select * from nls_session_paramet
PARAMETER
VALUE
NLS_LANGUAGE
AMERICAN
NLS_TERRITORY
AMERICA
NLS_CURRENCY
$
PARAMETER
VALUE
NLS_ISO_CURRENCY
AMERICA
NLS_NUMERIC_CHARACTERS
NLS_CALENDAR
GREGORIAN
PARAMETER
VALUE
NLS_DATE_FORMAT
DD-MON-RR
NLS_DATE_LANGUAGE
AMERICAN
NLS_SORT
BINARY
PARAMETER
VALUE
NLS_TIME_FORMAT
HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT
DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT
HH.MI.SSXFF AM TZR
PARAMETER
VALUE
NLS_TIMESTAMP_TZ_FORMAT
DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY
$
NLS_COMP
BINARY
PARAMETER
VALUE
NLS_LENGTH_SEMANTICS
BYTE
NLS_NCHAR_CONV_EXCP
FALSE
17 rows selected.