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 ORDERBYclauses either one of which can complete the query.
Examine the description of the EMPLOYEES table:
The session time zone is the same as the database server
Which two statements will list only the employees who have been working with the company for more than five years?
View the Exhibit and examine the structure of the ORDERS table. The ORDER_ID column
is the
PRIMARY KEY in the ORDERS table.
Evaluate the following CREATE TABLE command:
CREATE TABLE new_orders(ord_id, ord_date DEFAULT SYSDATE, cus_id)
AS
SELECT order_id.order_date,customer_id
FROM orders;
Which statement is true regarding the above command?
Examine the structure of the BOOKS_TRANSACTIONStable.
You want to update this table such that BOOK_IDis set to 'INVALID'for all rows where no MEMBER_ID has been entered.
Examine this partial SQL statement:
Which condition must be used in the WHEREclause to perform the required update?
MEMBER_ID = '';
