I am trying to understand how MS SQL Server licensing works. We are planning to purchase SQL Server 2012. The question is how many licenses do we need. How can I determine that?
We have 3 public facing web applications and 10 windows applications. All of these access the SQL Server database. The SQL connection string used in all these applications use the same SQL credentials (user sa). There are 4 more user accounts created in the SQL server for the developers.
Now on what does the number of licenses required depends? Does it depend on how many end-users access the application or on how many user-accounts are created in the SQL Server? Or is it something else. Please advise.