Online Access Free Oracle.1z1-071.v2022-04-29.q239 Practice Test (Page 15)

1z1-071 Exam Question 66

The first DROPoperation is performed on PRODUCTStable using the following command:
DROP TABLE products PURGE;
Then you performed the FLASHBACKoperation by using the following command:
FLASHBACK TABLE products TO BEFORE DROP;
Which statement describes the outcome of the FLASHBACKcommand?

A.It recovers only the table structure.

B.It recovers the table structure, data, and the indexes.

C.It recovers the table structure and data but not the related indexes.

D.It is not possible to recover the table structure, data, or the related indexes.

1z1-071 Exam Question 67

Which three statements are true about performing DML operations on a view with no INSTEAD OF triggers defined?

A.Views cannot be used to add rows to an underlying table If the table has columns with NOT NULL constraints lacking default values which are not referenced in the defining query of the view.

B.Insert statements can always be done on a table through a view.

C.Views cannot be used to add or modify rows in an underlying table If the defining query of the view contains the DISTINCT keyword.

D.Delete statements can always be done on a table through a view.

E.The WITH CHECK clause has no effect when deleting rows from the underlying table through the view.

F.Views cannot be used to query rows from an underlying table if the table has a PRIMARY KEY and the primary key columns are not referenced in the defining query of the view.

1z1-071 Exam Question 68

Examine the description of the TRANSACTIONS table:

Which two SQL statements execute successfully?

A.SELECT customer_id AS 'CUSTOMER-ID', transaction_date AS DATE, amount + 100 'DUES' FROM transactions;

B.SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + 100 "DUES AMOUNT" FROM transactions;

C.SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100 "DUES" FROM transactions;

D.SELECT customer_id AS "CUSTOMER-ID", transaction_date AS "DATE", amount + 100 DUES FROM transactions;

E.SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount +100 DUES FROM transactions;

1z1-071 Exam Question 69

Which three statements are true about views in an Oracle Database? (Choose three.)

A.Views can join tables only if they belong to the same schema.

B.A view can be created that refers to a non-existent table in its defining query.

C.Views have no object number.

D.Views have no segment.

E.Rows inserted into a table using a view are retained in the table if the view is dropped.

F.A SELECT statement cannot contain a WHERE clause when querying a view containing a WHEREclause in its defining query.

1z1-071 Exam Question 70

View the Exhibit and examine the structure of ORDERS and ORDER_ITEMS tables.
ORDER_ID is the primary key in the ORDERS table. It is also the foreign key in the ORDER_ITEMS table wherein it is created with the ON DELETE CASCADE option.
Which DELETE statement would execute successfully?

A.DELETEFROM ordersWHERE (SELECT order_idFROM order_items);

B.DELETE order_idFROM ordersWHERE order_total < 1000;

C.DELETE orders o, order_items IWHERE o.order_id = i.order_id;

D.DELETE ordersWHERE order_total < 1000;

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1z1-071 Exam Question 66

1z1-071 Exam Question 67

1z1-071 Exam Question 68

1z1-071 Exam Question 69

1z1-071 Exam Question 70

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