title: Numeric field width in DBF file inconsistent when created with oleDB (.NET)
body: <p>OleDB always add one more digit to DBF numeric fields when we create them. A command like this:
  <code>CREATE TABLE [file1.DBF] ( [MY_FIELD] NUMERIC(1,0) NULL)</code>
  will create a field that can contains 2 digits (or one digit and a minus sign). What's funny is that I can ask for a length of zero like this <code>NUMERIC(0,0)</code> and it's going to create a field with a length of 1. </p>
  
  <p>I couldn't find any documentation regarding this behavior. </p>
  
  <p>Is it specific to the use of oleDB to create DBF or the same can happen with other DB? </p>
  
  <p>Is the extra digit added by oleDB only to handle the minus sign? </p>
  
  <p>Is this behavior consistent? I mean, can I just subtract one to the width when I create the table? </p>
  
  <p>Edit:
  This question has pretty much been answered here:
  <a href="http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataproviders/thread/af245580-8897-4608-8fa0-f00286d37324?prof=required" rel="nofollow noreferrer">http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataproviders/thread/af245580-8897-4608-8fa0-f00286d37324?prof=required</a></p>