Question 7: Can you tell me what the difference of two SQL statements at performance of execution? Statement 1: if NOT EXISTS ( select * from publishers where state = 'NY') begin SELECT 'Sales force needs to penetrate New York market'end else begin SELECT 'We have publishers in New York' end Statement 2: if EXISTS ( select * from publishers where state = 'NY') begin SELECT 'We have publishers in New York' end else begin SELECT 'Sales force needs to penetrate New York market' end