Hi, I try to execute the dbms_stat_gather_table_stats in my oracle database, but i have the following error: BEGIN dbms_stat_gather_table_stats('SYSTEM','ST'); END; ERREURÂ line 1 : ORA-06550: Line 1, colonne 7 : PLS-00201: identifier 'DBMS_STATS GATHER_TABLE_STATS' should be declared ORA-06550: Line 1, colomn 7 : PL/SQL: Statement ignored Please that may be the problem.