Creating a job in schema when can't login in that schema

Question

there is a requirement that I've to create a job in a schema, but i don't have that schema's password,but I've that server's SYSDBA's password,means I can login into SYS account as SYSDBA,
but I've to create a job in that schema.
how is it possible,
EXECUTE IMMEDIATE ' DECLARE '||
' X NUMBER; '||
' BEGIN '||
' SYS.Dbms_Job.SUBMIT '||
' ( job => X '||
' ,what =>'||''''||what ||''''||
' ,next_date => TO_DATE('||''''||next_date||''''||','||''''||'dd/mm/yyyy hh24:mi:ss'||''''||') '||
' ,INTERVAL => '||''''||intervl||''''||
',no_parse => TRUE '||
' );'||
'SYS.Dbms_Output.PUT_LINE('||''''||'Job Number is: '||''''||' || TO_CHAR(x)); '||
'END; ';     
help required     

Answer 1

A desc on DBA_JOBS reveials the first three:
LOG_USER    VARCHAR2(30)                    USER who was logged in when the job was submitted                           
PRIV_USER   VARCHAR2(30)                    USER whose default privileges apply to this job                             
SCHEMA_USER VARCHAR2(30)                    select * from bar  means  select * from schema_user.bar          Perhaps you could try chang_env:
Use the correct NLSENV, below is just an example:
begin
sys.dbms_ijob.change_env( JOB => 3
,LUSER => '<NEW USER>'
,PUSER => '<NEW USER>'
,CUSER => '<NEW USER>'
,NLSENV => 'NLS_LANGUAGE=''AMERICAN''
NLS_TERRITORY=''AMERICA''
NLS_CURRENCY=''$''
NLS_ISO_CURRENCY=''AMERICA''
NLS_NUMERIC_CHARACTERS=''.,''
NLS_DATE_FORMAT=''DD-MON-RR''
NLS_DATE_LANGUAGE=''AMERICAN''
NLS_SORT=''BINARY''');
end;