ingres_field_nullable
  Test if a field is nullable
  
 
 
 
  Parameters
  
   
    - 
     result
- 
      
       The query result identifier
       
- 
     index
- 
      
       indexis the field whose nullability will be
       retrieved.
 
       The possible values of indexdepend upon
       the value
       of ingres.array_index_start.
       If ingres.array_index_start
       is 1 (the default)
       thenindexmust be
       between 1 and the value returned
       by ingres_num_fields. If ingres.array_index_start
       is 0 thenindexmust
       be between 0
       and ingres_num_fields -
       1.
 
 
 
  Return Values
  
   ingres_field_nullable returns TRUE if the
   field can be set to the NULL value and FALSE if it cannot
  
  
 
  See Also
  
   
    - ingres_query
- ingres_fetch_array
- ingres_fetch_assoc
- ingres_fetch_object
- ingres_fetch_row