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).
Launch iTunes on your computer and plug into your iPhone to the PC. Click the âFileâ button and choose to add files or folder from your PC to iTunes library. Click the âMusicâ icon to sync the audio files.