Question 241

Examine the business rule:
Each student can work on multiple projects and each project can have multiple students.
You need to design an Entity Relationship Model (ERD) for optimal data storage and allow for generating reports in this format:
STUDENT_ID FIRST_NAME LAST_NAME PROJECT_ID PROJECT_NAME PROJECT_TASK
Which two statements are true in this scenario? (Choose two.)
  • Question 242

    View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables.

    There is only one customer with the cust_last_name column having value Roberts. Which INSERT statement should be used to add a row into the ORDERS table for the customer whose CUST_LAST_NAME is Roberts and CREDIT_LIMIT is 600?
  • Question 243

    Which three actions can you perform by using the ALTER TABLE command?
  • Question 244

    View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables.
    (Choose the best answer.)
    You executed this UPDATE statement:
    UPDATE
    ( SELECT order_date, order_total, customer_id FROM orders)
    Set order_date = '22-mar-2007'
    WHERE customer_id IN
    (SELECT customer_id FROM customers
    WHERE cust_last_name = 'Roberts' AND credit_limit = 600);
    Which statement is true regarding the execution?
  • Question 245

    View the Exhibit and examine the structure of the ORDERS table. The columns ORDER_MODE and ORDER_TOTAL have the default values 'direct' and 0 respectively.

    Which two INSERT statements are valid? (Choose two.)