261、
261.In which cases is reference partitioning effective in enhancing performance? A. It is effective only in partition pruning. B. It is effective only in partitionwise joins provided that the query predicates are different from the partitioning key. C. It is effective in both partition pruning as well as partitionwise joins provided that the query predicates are identical to the partitioning key. D. It is effective in both partition pruning as well as partitionwise joins irrespective of whether the query predicates are different from or identical to the partitioning key.
262、
262.In Oracle 11g, which recommendations does the SQL Access Advisor generate? (Choose all that apply.) A. partitioning recommendations B. statistics collection recommendations C. index creation recommendations D. materialized view recommendations E. materialized view log recommendations
263、
263.Which statement is true for enabling Enterprise Manager Support Workbench in Oracle Database 11g to upload the physical files generated by Incident Packaging Service (IPS) to MetaLink? A. The database must be running in ARCHIVELOG mode. B. No special setup is required, and the feature is enabled by default. C. The path for the Automatic Diagnostic Repository (ADR) must be configured with the DIAGNOSTIC_DEST initialization parameter. D. The Enterprise Manager Support Workbench can be enabled only if the background process manageability monitor (MMON) is configured. E. Select the Enable option in the Oracle Configuration Manager Registration window during the installation of the Oracle Database 11g software, provide valid MetaLink credentials and select license agreement.
264、Using the LIST command in Recovery Manager (RMAN), which two pieces of information in the RMAN repository can be listed? (Choose two.)
A. stored scripts in the recovery catalog B. backups that can be deleted from disk C. backup sets and image copies are obsolete D. backups that do not have the AVAILABLE status in the RMAN repository
265、View the Exhibit for the object interdependency diagram.
The PRODUCTS table is used to create the PRODCAT_VW view. PRODCAT_VW is used in the GET_DATA procedure.
GET_DATA is called in the CHECK_DATA function. A new column PROD_QTY is added to the PRODUCTS table.
How does this impact the status of the dependent objects?
A. All dependent objects remain valid. B. Only the procedure and function become invalid and must be recompiled. C. Only the view becomes invalid and gets automatically revalidated the next time it is used. D. Only the procedure and function become invalid and get automatically revalidated the next time they are called.