EXP-00008: ORACLE error 933 encountered

Hi all,

every day we have full backup of oracle database (9.2.0.1.0) on windows 2003 server. since couple of days
i am getting following below error. i checked the solutions on google which talk about user quotas , i checked the user quotas by which i am taking
full backup it is unlimited , even i tried another user which also have umlimited quota on its default tablespace still i getting below
error, any suggestions ,openion will be highly appreciated. thanks

E:\backup>exp system/manager file=full26022012.dmp log=full26022012.log full=y statistics=none

EXP-00008: ORACLE error 933 encountered
ORA-00933: SQL command not properly ended
ORA-06512: at "SYS.DBMS_RULE_EXP_RL_INTERNAL", line 311
ORA-06512: at "SYS.DBMS_RULE_EXP_RULES", line 142
ORA-06512: at line 1
EXP-00083: The previous problem occurred when calling SYS.DBMS_RULE_EXP_RULES.schema_info_exp



even i go for full export by any other user which has full export privilege & unlimited quotas. i getting the same error.

E:\backup>exp username/password file=full26022012.dmp log=full26022012.log full=y statistics=none

EXP-00008: ORACLE error 933 encountered
ORA-00933: SQL command not properly ended
ORA-06512: at "SYS.DBMS_RULE_EXP_RL_INTERNAL", line 311
ORA-06512: at "SYS.DBMS_RULE_EXP_RULES", line 142
ORA-06512: at line 1
EXP-00083: The previous problem occurred when calling SYS.DBMS_RULE_EXP_RULES.schema_info_exp

I think "EXP-00008: ORACLE error 933 encountered" is related to a bad username -a username created with quotes and not to disk quota.

Check DBA_USERS looking for a user that might...
1- Have a space in the middle of the name
2- Start with a number
3- Start with a special character.

A username like "JIM SMITH" would cause this issue - rename or drop the user.