User-defined functions that return a table data type can be powerful alternatives to views. These functions are referred to as table-valued functions. A table-valued user-defined function can be used where table or view expressions are allowed in Transact-SQL queries.
1 Go to the iTunes folder that contains the iTunes library files 2  : Windows: Navigate to \Users\ username \Music\iTunes\. 3  Drag the iTunes Library.itl file to your Desktop. 4  In the iTunes folder, open the Previous iTunes Libraries folder. Windows: Navigate to \Users\ username \Music\iTunes\. 2  Drag the iTunes Library.itl file to your Desktop. 3  In the iTunes folder, open the Previous iTunes Libraries folder. 4  Find the file named iTunes Library YYYY-MM-DD where YYYY-MM-DD is the date you updated iTunes (Year-Month-Day).
See how many computers you've authorized. Click to open iTunes and sign in to your Account Information, or use the steps below: 1  Open iTunes. 2  Click Sign In and enter your Apple ID. 3  Click your name, and select Account Info from the drop-down menu.4  Enter your password again.eauthorize one computer. 1  Open iTunes on the computer you want to deauthorize. 2  menus in iTunes for Windows. 3  In earlier versions of iTunes, you can access this option from the Advanced or Store menus. 4  When prompted, enter your Apple ID and password. 5  Click Deauthorize.