Examine the description of the BOOKS_TRANSACTIONS table:
Examine this partial SQL statement:
SELECT * FROM books_transactions
Which two WHERE conditions give the same result?
Examine the description of the employees table:
Examine these requirements:
1- Display the last name, date of hire and the number of years of service for each employee.
2. If the employee has been employed 5 or more years but less than 10, display -5+ years of service".
3. If the employee has been employed 10 or more years but less than 15, display "10+ years of
service".
4. If the employee has been employed 15 or more years, display "15-*- years of service".
5. If none of these conditions matches, display "<5 years of service".
6. Sort the results by the hire_date column.
Which statement satisfies all the requirements?
A)
B)
C)
D)
Examine this description of the PRODUCTS table:
Rows exist in this table with data in all the columns. You put the PRODUCTS table in read-only mode. Which three commands execute successfully on PRODUCTS?
Which two are true about the NVL, NVL2, and COALESCE functions?