{AWR}AWR期間比較レポート作成

https://docs.oracle.com/cd/F19136_01/tgdba/comparing-database-performance-over-time.html#GUID-BF18F170-8363-471F-ADAE-C561B56A581E

BEGIN
  DBMS_WORKLOAD_REPOSITORY.CREATE_SNAPSHOT ();
END;
/

@$ORACLE_HOME/rdbms/admin/awrddrpt.sql