When should I open and close a connection to SQL Server

Question

I have a simple static class with a few methods in it. Each of those methods open a SqlConnection, query the database and close the connection. This way, I am sure that I al

Answer 1

Most programmers believe in open late and close early. This is only a problem if the latency for opening and closing the connection each time causes the entire application to slow down.

In your case with a static class it is probably best to open and close the connection each time.