What are the advantages and disadvantages of turning NOCOUNT off in SQL server queries?

Question

What are the advantages and disadvantages of turning NOCOUNT off in SQL server queries? ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­

Answer 1

It simply stops the message that shows the # of rows effected for being sent/displayed, which provides a performance benefit, especially if you have many statements that will return the message. It improves performance since less data is being sent over the network (between the sql server and front end).

More at BOL: SET NOCOUNT