In RAC, PMON role as service registration agent is particularly important. Pnnn: (Optional) Parallel Query Slaves are started and stopped as needed to participate in parallel query operations. RBAL: This process coordinates rebalance activity for disk groups in an Automatic Storage Management instance...
Chapter 15, "Using SQL Plan Management". 12.1.1.1 Different Schemas The execution and explain plan occur on different databases. The user explaining the statement is different from the user running the statement. Two users might be pointing to different objects in the same database, resulting in...
This “feature” blocks using dbms_xplan. I typically use gather_plan_statistics hint and select * from table(dbms_xplan.display_cursor(”,”,’ALLSTATS LAST’)) to get text version of autotrace. Being able to get text version of...
Before we start we should talk about some terms first. Explain plan: A tool or function provided by the DBMS (Database Management System) that makes an execution plan
When SQL trace is enabled for a database session, the Oracle server process handling that session writes detailed information about all database calls and operations to a trace file. Special database events may be set in order to cause Oracle to write even more specific information—such as ...
Virtual Memory: Virtual memory is the memory management capability of an Operating System that uses hardware and software to allow a computer to...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can...
>>Note the drop-down control added to the Explain Plan button in the worksheet toolbar. This is a total disaster. Please make an option to disable this “feature” or just disable it. This “feature” blocks using dbms_xplan. I typically use gather_plan_statistics hint and select * fro...