in reply to Right Number DB

HI there,

Can someone explain why when I have more than one value in any of my variables and I go in to the if statement I loose the first value and it starts to print from the second value on. Therefore I am not able to say if in any of the results I have more than one value just print all the values but if there is only one I want to use that value for something else like printing it in a url to redirect to another page.

Thanks for the help! 
my $count=0;

    while ($pointer = $sth->fetchrow_hashref)
    {
       
       ++$count;
       
       $type=$pointer->{'TYPE'};
       $number =$pointer->{'NUMBER'};
       $line =$pointer->{'LINE'};

        if($count > 1)
        {
           print "**** $number **** \n"; # If there is more than one v
+alue it will start to print from the second one and it will still go 
+to the ELSE I need to print all the values here and exit from it, jus
+t need to know what is the best way to do it.
           
        }else
            {
               print $number; 
            }
} #end of the while

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janitored by ybiC: Reparent into existing thread, format for legibility

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Re: (2) Right Number DB
by Roger (Parson) on Dec 11, 2003 at 13:09 UTC
    You could do it in two steps -

    Step 1 Explicitly get the row count with SQL -
    SELECT count(*) FROM table where ...

    [download]
    And then retrieve the rowcount from the query result.

    Step 2 Prepare the actual SQL to fetch the data. Since you already know the row count from the previous step, you can easily implement the required logic.

    $sth = $dbh->prepare($sql);
$sth->execute();
if ($rowcount == 1) {
  # do single row logic
  # fetch data
} else {
  # do multi-row logic
  # fetch data with while loop
}

    [download]
    There is a rowcount variable in the DBI, but I would not rely on it because it is not reliable (and database dependent?).

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