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).
Here's How: 1  If it is running, quit iTunes on the computer that you will restore the iTunes library to. 2  Attach the external hard drive that contains the iTunes backup. 3  Double click on the external hard drive icon to open it (you'll find it on your desktop or in the Finder on a Mac or in My Computer on Windows).hen you've done this, navigate through your computer to find the location to which you want to restore your iTunes library. On Windows, the default is in your My Music folder, which you can reach through the My Documents folder or, on Windows Vista/7, by double clicking on your hard drive.