is indicated by the code
    <TT
CLASS="LITERAL"
>00000</TT
>.  The <TT
CLASS="LITERAL"
>SQLSTATE</TT
> codes are for
    the most part defined in the SQL standard.  The
    <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> server natively supports
    <TT
CLASS="LITERAL"
>SQLSTATE</TT
> error codes; therefore a high degree
    of consistency can be achieved by using this error code scheme
    throughout all applications.  For further information see
    <A
HREF="errcodes-appendix.html"
>Appendix A</A
>.
   </P