ro.
     </P
></DD
><DT
><A
NAME="LIBPQ-PQSETVALUE"
></A
><CODE
CLASS="FUNCTION"
>PQsetvalue</CODE
>
     </DT
><DD
><P
>      Sets a tuple field value of a <TT
CLASS="STRUCTNAME"
>PGresult</TT
> object.
</P><PRE
CLASS="SYNOPSIS"
>int PQsetvalue(PGresult *res, int tup_num, int field_num, char *value, int len);</PRE
><P>
     </P
><P
>      The function will automatically grow the result's internal tuples array
      as needed.  However, the <TT
CLASS="PARAMETER"
>tup_num</TT
> argument must be
      less th