Generating an AWR Report via Enterprise Manager 12c
1). Login to OEM Console and Navigate to Targets -> Databases
2). Double click on Database.
3). Go to Performance -> AWR -> AWR Report
4). Provide SYS credentials, Select Role as SYSDBA and click Login.
5). Provide the Snapshots info by clicking on search bar
6). Click on Generate Report after providing snapshot info.
7). AWR report will be generated as shown below. Ensure that your Adobe Flash installed in your system.