多項(xiàng)選擇題

Which three statements about performance analysis by SQL Performance Analyzer are true? （）

A. It detects changes in SQL execution plans.
B. It produces results that can be used to create the SQL plan baseline.
C. The importance of SQL statements is based on the size of the objects accessed.
D. It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
E. It shows only the overall impact on workload and not the net SQL impact on workload.

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單項(xiàng)選擇題

You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process, you execute the following script:
SQL>@utlu111i.sql
Which statement about the execution of this script is true?（）

A. It must be executed from the Oracle Database 11g environment.
B. It must be executed only after the SYSAUX tablespace has been created.
C. It must be executed from the environment of the database that is being upgraded.
D. It must be executed only after AUTOEXTEND is set to ON for all existing tablespaces.
E. It must be executed from both the Oracle Database 11g and Oracle Database 9i environments.

單項(xiàng)選擇題

Examine the following command that is executed for the TRANSPORT table in the SH schema:

Which statement describes the significance of this command?（）

A. It collects statistics into the pending area in the data dictionary
B. It creates a virtual hidden column in the CUSTOMERS_OBE table
C. It collects statistics with AUTO_SAMPLE_SIZE for ESTIMATE_PERCENT
D. It creates a histogram to hold skewed information about the data in the columns

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Which three statements about performance analysis by SQL Performance Analyzer are true? （）

你可能感興趣的試題

You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process, you execute the following script: SQL>@utlu111i.sql Which statement about the execution of this script is true?（）

Examine the following command that is executed for the TRANSPORT table in the SH schema: Which statement describes the significance of this command?（）

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You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process, you execute the following script:
SQL>@utlu111i.sql
Which statement about the execution of this script is true?（）

Examine the following command that is executed for the TRANSPORT table in the SH schema:

Which statement describes the significance of this command?（）