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When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this？（）（Choose two.)

A. It produces less accurate results of the comparison analysis.

B. It automatically calls the SQL Tuning Advisor for recommendations.

C. It shortens the time of execution and reduces the impact on system resources.

D. Only the changes in the execution plan, and not performance regression, are detected.

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更多“When executing a SQL workload,…”相关的问题

第1题

When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics.Which two statements describe the implications of this？（）

A. It produces less accurate results of the comparison analysis.

B. It automatically calls the SQL Tuning Advisor for recommendations.

C. It shortens the time of execution and reduces the impact on system resources.

D. Only the changes in the execution plan, and not performance regression, are detected.

点击查看答案

第2题

What is true about a background engine？（）（Choose two.)

A. It is a server-side PL/SQL procedure.

B. When executing a PL/SQL function activity, it will automatically ping (cache) the PL/SQL code.

C. It executes deferred activities in decreasing order of their Cost property value (activities with higher cost value are processed first).

D. It would fail if another background engine process is started to handle the same type of activities within the same item type.

E. During its single invocation, it processes activities that were stuck, deferred or timed out when the background engine was started.

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第3题

Which two are attributes of iSQL*Plus？（）

A./SQL*Plus commands cannot be abbreviated.

B./SQL*Plus commands are accessed from a browser.

C./SQL*Plus commands are used to manipulate data in tables.

D./SQL*Plus commands manipulate table definitions in the database.

E./SQL*Plus is the Oracle proprietary interface for executing SQL statements.

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第4题

Which two are attributes of /SQL*Plus？（）

A. /SQL*Plus commands cannot be abbreviated.

B. /SQL*Plus commands are accesses from a browser.

C. /SQL*Plus commands are used to manipulate data in tables.

D. /SQL*Plus commands manipulate table definitions in the database.

E. /SQL*Plus is the Oracle proprietary interface for executing SQL statements.

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第5题

Which statement correctly describes SQL and /SQL*Plus？（）

A. Both SQL and /SQL*plus allow manipulation of values in the database.

B. /SQL* Plus recognizes SQL satement and sends them to the server; SQL is the Oracle proprietary interface for executing SQL statements.

C. /SQL* Plus language for communicating with the Oracle server to access data; SQL recognizes SQL statements and sends them to the server.

D. /SQL manipulates data and table definition in the database; /SQL* Plus does not allow manipulation of values in the database.

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第6题

Which statement correctly describes SQL and /SQL*Plus？（）

A. Both SQL and /SQL*plus allow manipulation of values in the database.

B. /SQL* Plus recognizes SQL satement and sends them to the server; SQL is the Oracle proprietary interface for executing SQL statements.

C. /SQL* Plus language for communicating with the Oracle server to access data; SQL recognizes SQL statements and sends them to the server.

D. /SQL manipulates data and table definition in the database; /SQL* Plus does not allow manipulation of values in the database.

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第7题

2、在左推右攻时，我们的站位需要远于球台。 When executing “backhand drive with forehand drive”, we should stand far away from the table.

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第8题

Your organization decided to upgrade the existing Oracle 10g database to Oracle 11g databa

se in a multiprocessor environment. At the end of the upgrade, you observe that the DBA executes the following script:SQL＞ @utlrp.sqlWhat is the significance of executing this script？（）

A. It performs parallel recompilation of only the stored PL/SQL code.

B. It performs sequential recompilation of only the stored PL/SQL code.

C. It performs parallel recompilation of any stored PL/SQL as well as Java code.

D. It performs sequential recompilation of any stored PL/SQL as well as Java code.

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第9题

Before performing a mksysb system backup, which of the following procedures should a system administrator perform to avoid backing up certain user files？（）

A.Add the list of files to /etc/exclude.rootvg.

B.Modify the image.data file and add the files to be excluded form the backup.

C.Modify the bosinst.data file and specify which files are to be excluded from the backup.

D.Specify the files to be excluded on the command line when executing the mksysb command.

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第10题

Which statement about using RMAN stored scripts is true？（）

A. To create and execute an RMAN stored script, you must use a recovery catalog.

B. When executing a stored script and a command fails, the remainder of the script is executed, and a message is written to the alert log file.

C. RMAN stored scripts can always be executed against any target database that is registered in the recovery catalog.

D. When you execute a stored script, it always executes using the persistent channel settings previously set with the CONFIGURE command.

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When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this？ （）（Choose two.)

When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this？（）（Choose two.)