ngly encouraged to use
    <TT
CLASS="LITERAL"
>SQLSTATE</TT
>.
   </P
><P
>    <TT
CLASS="LITERAL"
>SQLSTATE</TT
> is a five-character array.  The five
    characters contain digits or upper-case letters that represent
    codes of various error and warning conditions.
    <TT
CLASS="LITERAL"
>SQLSTATE</TT
> has a hierarchical scheme: the first
    two characters indicate the general class of the condition, the
    last three characters indicate a subclass of the general
    condition.  A successful state 