title: How to select data items of a certain length?
body: <p>How do I select the row of a column such that the row size is &lt;= 5 ? 
  Is there a query for this which will work on most/all databases ?</p>
  
  <p>eg. id, first_name</p>
  
  <p>Select only those people whose firstname is more than 10 characters. Their name is too long ?</p>