Generation and performance analysis of Oracle AWR report

The Oracle AWR (Automatic Workload Repository) report generation and performance analysis tool is used to monitor and analyze the performance of Oracle databases. AWR reports are composed of a set of performance statistics automatically collected and maintained by the Oracle database. These statistics include database activity, object usage, wait events, and SQL statement execution.

To generate an AWR report, you can utilize the AWR report generation tool provided by the Oracle database. You can create an AWR report by running specific SQL scripts or using management tools like Oracle Enterprise Manager.

After generating an AWR report, you can use it to perform performance analysis. The AWR report provides detailed information on database activity, wait events, and database object usage. By analyzing the AWR report, you can understand the database workload, performance bottlenecks, and potential optimization opportunities.

In the AWR report, you can view several key performance indicators such as average load, average wait time, and SQL statement execution time. You can also check the TOP SQL statement list to see the SQL statements with the longest execution time and possible optimization suggestions.

By analyzing AWR reports, one can identify the root causes of database performance issues and suggest corresponding optimization measures. These measures may include improving SQL statement performance, adjusting database parameters, and increasing hardware resources.

In conclusion, Oracle AWR report generation and performance analysis are important tools for evaluating and optimizing Oracle database performance. Generating AWR reports and conducting detailed performance analysis can lead to improvements in the database’s performance and reliability.