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NEW QUESTION: 1
A user, SCOTT, complains that his database session, SID 249, is extremely slow in processing transactions. You check the ADDM report and do not find any overall database performance issues.
You decide to check the wait events, specifically in SCOTT's session and issue the following command:
SQL>SELECT wait_class_id, wait_class, total_waits, time_waited
FROM v$session_wait_class
WHERE sid = 249;
View Exhibit1 and examine the output.

You note that the APPLICATION wait class is the second most expensive wait class after the IDLE wait class.
You issue the following query to identify individual waits in the APPLICATION wait class:
SQL>select event, total_waits, time_waited
from v$system_event e, v$event_name n
where n.event_id = e.event_id
and wait_class_id = 4217450380;
View Exhibit2 and examine the output.

Which view would you examine next to pinpoint the problem that is causing this performance issue?
A. V$SESS_TIME_MODEL - to identify whether the SQL statements in the session were spending more of execution time in parsing or waiting for the CPU
B. V$EVENT_HISTOGRAM - to determine whether the TIME_WAITED is evenly distributed across the occurrences of the wait or whether some waits for the events were very long whilst others were short indicating more erratic response times.
C. V$SQLAREA statistics - to find the SQL statements with the highest number of executions
D. DBA_HIST_SESSMETRIC_HISTORY - to find the highest value metrics in the session
Answer: B

NEW QUESTION: 2
Which of the following methods belongs to the FilterConfig interface and ServletConfig interface both?
Each correct answer represents a complete solution. Choose all that apply.
A. getServletContext()
B. getInitParameter()
C. getFilterName()
D. getInitParameterNames()
Answer: A,B,D

NEW QUESTION: 3




Answer:
Explanation:

Explanation

Using TRY...CATCH in Transact-SQL
Errors in Transact-SQL code can be processed by using a TRY...CATCH construct.
TRY...CATCH can use the following error function to capture error information:
ERROR_MESSAGE() returns the complete text of the error message. The text includes the values supplied for any substitutable parameters such as lengths, object names, or times.
References: https://technet.microsoft.com/en-us/library/ms179296(v=sql.105).aspx

NEW QUESTION: 4
Which statement about the ADMIN_MOVE_TABLE procedure is true?
A. The ADMIN_MOVE_TABLE procedure stores all changes that occur to data in the active (source) table during the move to a user-suppliedstaging table so they can be replayed against the target table when the move is complete.
B. The ADMIN_MOVE_TABLE procedure immediately applies all changes that occur to data in the active (source) table during the move operationto the target table.
C. If the ADMIN_MOVE_TABLE procedure is invoked with the KEEP option specified, the active (source) table will be kept and if the target table isto be created automatically, a name that is different from that of the active table must be specified for the target table.
D. If the ADMIN_MOVE_TABLE procedure is used to move data in an active (source) table to a target table that was created beforehand, thetarget table is renamed (to the source table name) once the data has been copied into the target table.
Answer: D