title: Error: String or binary data would be truncated
body: <p>Im getting this when running a query like this WITHOUT inserting in any table. in SSMS 2008.</p>
  
  <pre><code>select iav.*
  from ITEM_ATTRIBUTE_VALUE iav
  where iav.attribute_value != ''
      and ISNUMERIC(iav.attribute_value) = 0
  </code></pre>
  
  <p>Why would it do this ?</p>