Question No 1

Evaluate the following SQL statement: SQL> select cust_id, cust_last_name "Last name" FROM customers WHERE country_id = 10 UNION SELECT cust_id CUST_NO, cust_last_name FROM customers WHERE country_id = 30 Identify three ORDER BY clauses either one of which can complete the query. (Choose three.)

Choose the Choices:

ORDER BY "Last name"

ORDER BY 2, cust_id

ORDER BY CUST_NO

ORDER BY 2,1

ORDER BY "CUST_NO"

Question No 2

Which three statements are true regarding the WHERE and HAVING clauses in a SQL statement? (Choose three.)

Choose the Choices:

WHERE and HAVING clauses cannot be used together in a SQL statement.

The HAVING clause conditions can have aggregate functions.

The HAVING clause conditions can use aliases for the columns.

The WHERE clause is used to exclude rows before the grouping of data.

The HAVING clause is used to exclude one or more aggregated results after grouping data.

Question No 3

View the exhibit and examine the description of the PRODUCT_INFORMATION table. Which SQL statement would retrieve from the table the number of products having LIST_PRICE as NULL?

Choose the Choices:

SELECT COUNT (DISTINCT list_price)FROM product_informationWHERE list_price is NULL

SELECT COUNT (NVL(list_price, 0))FROM product_informationWHERE list_price is NULL

SELECT COUNT (list_price)FROM product_informationWHERE list_price i= NULL

SELECT COUNT (list_price)FROM product_informationWHERE list_price is NULL

Question No 4

Which two statements are true about Data Manipulation Language (DML) statements? (Choose two.)

Choose the Choices:

An INSERT INTO...VALUES.. statement can add multiple rows per execution to a table.

An UPDATE... SET... statement can modify multiple rows based on multiple conditions on a table.

A DELETE FROM..... statement can remove rows based on only a single condition on a table.

An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.

A DELETE FROM..... statement can remove multiple rows based on multiple conditions on a table.

An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.

Question No 5

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

Choose the Choices:

A role can be granted to itself.

A role can be granted to PUBLIC.

A user can be granted only one role at any point of time.

The REVOKE command can be used to remove privileges but not roles from other users.

Roles are named groups of related privileges that can be granted to users or other roles.

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