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READ Free Dumps For Oracle- 1z0-047





Question ID 6427

Which statements are true regarding the hierarchical query in Oracle Database 10g? (Choose all that apply.)

Option A

It is possible to retrieve data only in top-down hierarchy.

Option B

. It is possible to retrieve data in top-down or bottom-up hierarchy

Option C

. It is possible to remove an entire branch from the output of the hierarchical query.

Option D

You cannot specify conditions when you retrieve data by using a hierarchical query.

Correct Answer BC
Explanation


Question ID 6428

Which two statements are true regarding views? (Choose two.)

Option A

A simple view in which column aliases have been used cannot be updated.

Option B

. A subquery used in a complex view definition cannot contain group functions or joins.

Option C

Rows cannot be deleted through a view if the view definition contains the DISTINCT keyword.

Option D

Rows added through a view are deleted from the table automatically when the view is dropped.

Option E

The OR REPLACE option is used to change the definition of an existing view without dropping and re-creating it

Option F

. The WITH CHECK OPTION constraint can be used in a view definition to restrict the columns displayed through the view.

Correct Answer CE
Explanation

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