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).
1. Launch iTunes on your computer. 2. Go to the Store menu and choose Authorize Computer from the drop-down list. 3. Check the button of Apple ID in the popped up dialog box. 4. Enter the Apple ID and password you used to purchase the iTunes items and then click the Authorize button.. Launch iTunes on your computer. 2. Go to the Store menu and choose Authorize Computer from the drop-down list. 3. Check the button of Apple ID in the popped up dialog box. 4. Enter the Apple ID and password you used to purchase the iTunes items and then click the Authorize button.