C# SqlCommand initialization string

I'm working on a C# program that someone else wrote. At some point, I encountered

SqlConnection connString = new SqlConnection(@"Data Source=***;Initial Catalog=***;Integrated Security=True");

SqlCommand command = new SqlCommand("pr_upiteminvent", connString);

According to the C# API, that first parameter in the SqlCommand constructor should be a query, but the person who developed this program used "pr_upiteminvent" instead. Any ideas what it might be?

Thanks in advance.