You administer a Microsoft SQL Server database server. One of the databases on the server supports a highly active OLTP application.
Users report abnormally long wait times when they submit data into the application.
You need to gather blocking data over an extended period of time. You also need to ensure minimum impact to server performance.
What should you do?
A. Run the sp_who2 command from a query window and examine the BlkBy column.
B. Use the Job Activity monitor to review all processes that are actively running. Review the Job History to find out the duration of each step.
C. Use sp_configure to set a value for blocked process threshold. Create an extended event session.
D. Use SQL Profiler to trace all queries that are processing on the server. Filter queries that have a Duration value of more than 1,000 ms.
E. Run the DBCC TRACEON 1222 command from a query window and review the SQL Server event log.
