function IPDOStatement.fetch_bound: Boolean;

This function retrieves the next row from the result set and binds the variables associated with the columns. All columns must be bound before calling IPDOStatement.fetch_bound.

Return Values

Returns TRUE if there was an unfetched row on the current result set, and it was successfully bound to the variables, and FALSE otherwise.

Examples

Binding columns in the result set to Pascal variables is an effective way to make the data contained in each row immediately available to your application. The following example demonstrates how PDO allows you to bind and retrieve columns with a variety of options and with intelligent defaults.

procedure example1;
var
   sql: AnsiString;
   cals: Integer;
   colour, name: AnsiString;
Begin
   sql := 'SELECT name, colour, calories FROM fruit';
   try
       stmt := db.prepare_as_is(sql);
       stmt.bindColumn ('name', name, string_1);
       stmt.bindColumn (1, colour); 
       stmt.bindColumn ('calories', cals, integer_16);
       stmt.execute();
       while (stmt.fetch_bound) do begin
           writeln (name + chr(9) + colour + chr(9) + IntToStr(cals));
       end;
   except
       on E: Exception do 
          writeln (E.message);
   end;
End;

The above example will output:

apple   red     150
banana  yellow  175
kiwi    green   75
orange  orange  150
mango   red     200
strawberry      red     25