title: Oracle Database CPU, Memory utilization history
body: <p>I need to determine the workload of our database instance each week, AWR report provides many details but its very hard to break down the data.</p>
  
  <p>I need a query that produces a data set that represents the snap-id with the following value:
  CPU utilization
  Memory Utilization
  Read/Write operations</p>
  
  <p>Using this set I will be able to create a histogram shows the  CPU, memory, and read/write utilization during the week by each hour.</p>