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Oracle Database SQL Sample Questions (Q346-Q351):

NEW QUESTION # 346
View the exhibit and examine the description for the SALES and CHANNELS tables.

You issued this SQL statement:

Which statement is true regarding the result?

A. The statement will fail because the subquery in the VALUES clause is not enclosed within single quotation marks.
B. The statement will execute and a new row will be inserted in the SALES table.
C. The statement will fail because a subquery cannot be used in a VALUES clause.
D. The statement will fail because the VALUES clause is not required with a subquery.

Answer: B

NEW QUESTION # 347
View the exhibit and examine the structures of the EMPLOYEESand DEPARTMENTStables.

You want to update EMPLOYEEStable as follows:
Update only those employees who work in Boston or Seattle (locations 2900 and 2700).

Set department_idfor these employees to the department_idcorresponding to London

(location_id 2100).
Set the employees' salary in location_id2100 to 1.1 times the average salary of their department.

Set the employees' commission in location_id2100 to 1.5 times the average commission of their

department.
You issue the following command:

What is outcome?

A. It executes successfully but does not give the desired update
B. It generates an error because multiple columns (SALARY, COMMISSION)cannot be specified together in an UPDATEstatement.
C. It executes successfully and gives the desired update
D. It generates an error because a subquery cannot have a join condition in a UPDATEstatement.

Answer: A

NEW QUESTION # 348
View the Exhibit and examine the structure in the DEPARTMENTS tables. (Choose two.)

Examine this SQL statement:
SELECT department_id "DEPT_ID", department_name, 'b'
FROM departments
WHERE departments_id=90
UNION
SELECT department_id, department_name DEPT_NAME, 'a'
FROM departments
WHERE department_id=10
Which two ORDER BY clauses can be used to sort the output? (Choose two.)

A. ORDER BY DEPT_NAME;
B. ORDER BY DEPT_ID;
C. ORDER BY 'b';
D. ORDER BY 3;

Answer: B,D

NEW QUESTION # 349
View the Exhibit and examine the structure of ORDERS and ORDER_ITEMS tables.
ORDER_ID is the primary key in the ORDERS table and the foreign key of the ORDER_ITEMS table, whose constraint is defined with the ON DELETE CASCADE option.
Which DELETE statement would execute successfully?

A. DELETE ordersWHERE order_total < 1000;
B. DELETEFROM ordersWHERE (SELECT order_idFROM order_items);
C. DELETE orders o, order_items iWHERE o.order_id = i.order_id;
D. DELETE order_idFROM ordersWHERE order_total < 1000;

Answer: A

NEW QUESTION # 350
View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables. (Choose the best answer.)

You executed this UPDATE statement:

Which statement is true regarding the execution?

A. It would not execute because a subquery cannot be used in the WHERE clause of an UPDATE statement.
B. It would not execute because two tables cannot be referenced in a single UPDATE statement.
C. It would not execute because a SELECT statement cannot be used in place of a table name.
D. It would execute and restrict modifications to the columns specified in the SELECT statement.

Answer: D

NEW QUESTION # 351
......

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