Write a select statement that returns one column from the vendors table named full_name that joins the vendor_contact_last_name and vendor_contact_first_name columns. format this column with the last name, a comma, a space, and the first name like this: doe, john sort the result set by last name and then first name in ascending sequence. return only the contacts whose last name begins with the letter a, b, c, or e. this

File i/o activity objective: the objective of this activity is to practice working with text files in c#. for this activity, you may do all code in the main class. instructions: create an app that will read integers from an input file name numbers. txt that will consist of one integer per record. example: 4 8 25 101 determine which numbers are even and which are odd. write the even numbers to a file named even. txt and the odd numbers to a file named odd. txt.