Which five Transact-SQL statements should you use?

DRAG DROP
You write the following SELECT statement to get the last order date for a particular customer.

You need to create the user-defined function to return the last order date for the specified
customer.
Which five Transact-SQL statements should you use? (To answer, move the appropriate SQL
statements from the list of statements to the answer area and arrange them in the correct order.)

Answer: See the explanation

Explanation:
Box 1:

Box 2:

Box 3:

Box 4:

Box 5:

Note:
* First function header
* Then declare that the function returns a datetime
* Thirdly begin the function body.
* Fourthly declare the return variable
* At last include the code that retrieves the required date.