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 |
| 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 |