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VCE
Which statement about compression dictionaries is FALSE?
A. Page-level dictionaries are stored in hidden rows within the table.
B. Table-level dictionaries are stored in hidden rows within the table.
C. Page-level dictionaries are automatically created or recreated by the database manager as pages are filled.
D. Table-level dictionaries are automatically created or recreated as by the database manager as pages are filled.
The following query is executed frequently against the SALES table:
SELECT sales_person, region FROM sales WHERE region = 'Quebec' Which statement will create an index for optimal query performance?
A. CREATE INDEX sales_idx ON sales (region)
B. CREATE INDEX sales_idx ON sales (sales_person)
C. CREATE INDEX sales_idx ON sales (region, sales_person)
D. CREATE INDEX sales_idx ON sales (region) INCLUDE (sales_person)
In which situation would you NOT use a redirected restore?
A. To redefine the paths of a defined storage group.
B. To move table space containers onto different physical devices.
C. To restore a backup image from one operating system to another.
D. To restore a backup image to a target machine that is different from the source machine.