title: Data type that restricts symbols?
body: <p>I was asked a day ago by a fellow developer if I know a data type that restricts symbols, thus, only accepting alphanumeric values. As far as I know, there can't be one. But then again, I don't know everything so I took the time to ask.</p>
  
  <p>If there is one, either in MSSQL or MySQL, please enlighten me. It may come in handy in the future.</p>
  
  <p>Cheers!</p>