Our company is not a consulting or developing company, we are the customer and we often think: when something is running fine, leave it, don't mess with it.

We still have 2 instances of SQL 2000 because they have applications running on it that need this version. Since we don't want to update the application, SQL 2000 will be used till we decide to a new application.

Beside the SQL 2000 we have one instance of 2005, several 2008R2 and since a few month one 2012.

As you can see, a mix of several versions.

How long before upgrade? When the application needs it, otherwise we keep it at the same version.

have a nice weekend,

Vera