You need to be sure that you don't return a NULL value... Try this
SELECT td = coalesce(Name, 'No Name Returned'),'',td = coalesce(Address, 'No Address Returned'), '',td = '<a href="' + Link+ '">' +Link+ '</a>'
from Student where payment_type='Credit' and Payment_Status=1
The text I added
'No Name Returned'
'No Address Returned'
Can both be changed to anything you want to display including just empty data ie: ''
The coalesce function returns the first NON null value. SO if for example Name is NULL then the value I set in parenthesis will be returned.
<hr noshade size=1 width=250 color=#BBC8E5> Regards,Jeffery Williams http://www.linkedin.com/in/jwilliamsoh