View the Exhibit and examine the structure of the PRODUCTS table. Which two tasks require subqueries?
Examine the command to create the BOOKS table.
The BOOK_IDvalue 101does not exist in the table.
Examine the SQL statement:
Which statement is true?
View the Exhibit and examine the structure of the SALES and PRODUCTS tables. (Choose two.) In the SALES table, PROD_ID is the foreign key referencing PROD_ID in the PRODUCTS table. You must list each product ID and the number of times it has been sold.
Examine this query which is missing a JOIN operator:
SQL > SELECT p.prod_id, count(s.prod_id)
FROM products p ______________ sales s
ON p.prod_id = s.prod_id
GROUP BY p.prod_id;
Which two JOIN operations can be used to obtain the required output?
Examine this query:
SELECT employee_id,first_name,salary
FROM employees
WHERE hire_date>'&1';
Which two methods should you use to prevent prompting for a hire date value when this query is executed?
