WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED

Question

Could someone give me some guidance on when I should use WITH (NOLOCK) as opposed to SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED

What

Answer 1

• NOLOCK is local to the table (or views etc)
• READ UNCOMMITTED is per session/connection

As for guidelines... a random search from StackOverflow and the electric interweb...

• Is the NOLOCK (Sql Server hint) bad practice?
• When is it appropriate to use NOLOCK?
• Get rid of those NOLOCK hints…