Need stats expert support

 Hi,

while executing the import schema stats , we are facin the below error in one of our 9.2.0.6 DB on Solaris 5.8 build.

SQL> exec dbms_stats.import_schema_stats('ALPHA','STATS');
BEGIN dbms_stats.import_schema_stats('ALPHA','STATS'); END;

*
ERROR at line 1:
ORA-20000: Schema ALPHA does not exist or insufficient privileges to analyze an
object within it
ORA-06512: at "SYS.DBMS_STATS", line 4984
ORA-06512: at "SYS.DBMS_STATS", line 5007
ORA-06512: at "SYS.DBMS_STATS", line 5523
ORA-06512: at line 1
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Please help us why I'm getting this error and how to overcome this?

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Thanks

GPKris