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Don Burleson Blog 







Installation or AWR Tips

Oracle Database Tips by Donald Burleson

25 January 2013

Question:  I have paid the $7,000.00 fee for the packs to use AWR (the performance pack and the diagnostic pack? Yet I get this error when trying to run an AWR report:

exec dbms_workload_repository.create_snapshot;

ERROR at line 1:
ORA-04063: package body "SYS.DBMS_WORKLOAD_REPOSITORY" has errors
ORA-06508: PL/SQL: could not find program unit being called:
ORA-06512: at line 1

Answer:  To install AWR (whihc should be installed by default at dsatabase creation time), there are only two AWR installation scripts, which are also located in the $ORACLE_HOME/rdbms/admin directory:

       catawr.sql  This AWR script creates data dictionary catalog objects for the

      dbmsawr.sql   This AWR script creates the dbms_workload_repository   
                            package for database administrators.

By design, the AWR is created at the same time the database is created and is included in the data dictionary. This shows that the AWR is in the kernel part of the database that cannot function properly without it, while STATSPACK is a stand-alone utility that can be installed or removed from the database at any time.

Privileges to run AWR Reports

Sometime you need to create a user that will be able to have the system privileges to ruin AWR and you can create a awr_role for this purpose and grant it to the awr_user:

create role awr_user;

grant select  on sys.v_$database                to awr_user;
grant select  on sys.v_$instance                to awr_user;
grant execute on sys.dbms_workload_repository   to awr_user;
grant select  on sys.dba_hist_database_instance to awr_user;
grant select  on sys.dba_hist_snapshot          to awr_user;


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