title: adding a yes/no field with Format = Yes/No
body: <p>I have Delphi 6 code that adds a bit field to an Access table.
  I have been unable to get any code to set the 'Field Properties.General.Format' to Yes/No.
  Within the existing table I have other bit fields with values of either 0 or 1 and their Format is 'Yes/No' so the existing fields display a checkbox.
  The code that adds the field is...</p>
  
  <pre><code>ADOQuery1.SQL.Text := 'ALTER TABLE MKSystem ADD COLUMN Use_GMK Bit Default 0 not      Null';
  ADOQuery1.ExecSQL;
  </code></pre>
  
  <p><strong>After I step through the ExeSQL code, I can view the DB and see that the 'Use_GMK' was added to the 'MKSystem' table and that its Default value is 0.  The column's 'Format' is blank.  I have tried everything that I can think of to set the Format to 'Yes/No' but I have been unsuccessful.</strong></p>
  
  <p>After checking previous posts, I have not found any response as to how to set the <strong>"Format"</strong> for this Column to Yes/No</p>
  
  <p>Any assistance would be greatly appreciated.</p>