On Tue, 5 Oct 2004 12:59:55 -0500, NIPP, SCOTT V (SBCSI) <[EMAIL PROTECTED]> wrote:
>         OK.  The problem is I don't want the next "highest" number.
> There are gaps in the UID sequence.  I need to find the next UNUSED
> number in the sequence which is rarely the "highest" number.

As far as I know, you'll have to write a little function to do that
for you.  I don't know of a built-in database function that does what
you require.  Assuming your application is PHP, Something such as this
might work (pardon the shorthand):

function getNextMissing () 
  $result = "select id from the_table order by id";
  while (list ($id) = mysql_fetch....)
    if (isset ($lastId) && ($lastId < $id - 1))
        $returnVal = $lastId + 1;
     $lastId = $id;  
  return $returnVal;

You'll need to modify the function to handle there being no gaps in
the sequence (i.e. return $id + 1 if you never hit the logic in the
if), or for that matter, there being no id's.  Otherwise, I think it's
a good starting point.  Good luck!

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