oracle重新收集了schema的统计信息

这是公司请的dba解决这个问题的全过程，反正我是一脸懵逼。

Connecting to 10.206.1.126:22...

Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.


Last login: Tue Feb  6 19:19:31 2018 from 10.206.14.112
[root@localhost ~]# su - oracle
[oracle@localhost ~]$ sqlplus / as sysdba


SQL*Plus: Release 12.2.0.1.0 Production on Wed Feb 7 15:12:54 2018


Copyright (c) 1982, 2016, Oracle.  All rights reserved.




Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production


SQL> exec dbms_stats.gather_schema_stats('ccs_s')^H^H^H^[[3~
BEGIN dbms_stats.gather_schema_stats('ccs_; END;


                                             *
ERROR at line 1:
ORA-06550: line 1, column 46:
PLS-00103: Encountered the symbol "" when expecting one of the following:
:= . ( % ;




SQL> 
SQL> 
SQL> exec dbms_stats.gather_schema_stats('ccs_sd');




PL/SQL procedure successfully completed.


SQL> SQL> exec dbms_stats.gather_schema_stats('ccs_sm');
BEGIN dbms_stats.gather_schema_stats('ccs_sm'); END;


*
ERROR at line 1:
ORA-20000: Schema "CCS_SM" does not exist or insufficient privileges
ORA-06512: at "SYS.DBMS_STATS", line 38298
ORA-06512: at "SYS.DBMS_STATS", line 38257
ORA-06512: at "SYS.DBMS_STATS", line 8593
ORA-06512: at "SYS.DBMS_STATS", line 38140
ORA-06512: at "SYS.DBMS_STATS", line 38285
ORA-06512: at line 1




SQL> exec dbms_stats.gather_schema_stats('ccs_mm');




exec dbms_stats.gather_schema_stats('ccs_pm');




PL/SQL procedure successfully completed.


SQL> SQL> SQL> 


exec dbms_stats.gather_schema_stats('ccs_fm');


exec dbms_stats.gather_schema_stats('ccs_ct');




PL/SQL procedure successfully completed.


SQL> SQL> SQL> SQL> 
exec dbms_stats.gather_schema_stats('ccs_mdm');




PL/SQL procedure successfully completed.


SQL> SQL>