單項選擇題

One of the users in the PROD database，Adams，complains that his update on the table，TRANS， is taking an unusually long time to complete. You find that the table gets locked by another database user before Adams starts his transactions，and you are unable to contact the user holding the table lock. As Adams is updating some crucial rows in the table， he should get the highest priority.
Which method would you use to overcome this problem？（）

A.execute the command， ALTER SESSION KILL ..， to kill the blocking session
B.execute the DBMS_SESSION.KILL_SESSION procedure to kill the blocking session
C.execute the command， ALTER SYSTEM KILL SESSION ..， to kill the blocking session
D.execute the command， ALTER SESSION UNLOCK ..， to release the lock for the blocking session
E.execute the command， ALTER SYSTEM UNLOCK SESSION ..， to release the lock for the blocking session

你可能感興趣的試題

單項選擇題

What advantage would you get if you increase the length of time during which the undo information would be stored in the database？（）

A.roll back of large transactions
B.roll forward to redo a transaction
C.data concurrency for large updates
D.read consistency for long-running transactions

單項選擇題

The database users are connecting to the PROD database from different
applications， thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one.
Which action would you take to achieve this objective？（）

A.set the SESSIONS to 1 in the parameter file
B.grant SINGLE SESSION privilege to all of the users
C.set the SESSIONS_PER_USER to 1 in the users’ profile
D.grant RESTRICTED SESSION privilege to all of the database users
E.create a role with SINGLE SESSION privilege and assign the role to the users

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

你可能感興趣的試題

What advantage would you get if you increase the length of time during which the undo information would be stored in the database？（）

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

What advantage would you get if you increase the length of time during which the undo information would be stored in the database？（）