The best way would be to set the id field as an auto_increment field (or whatever the Oracle equivalent is) and you won't need to worry about it, the field will get updated/increment on every new ticket insertion.

Make the SQL engine do your work for you!

Barring that, this should work with Oracle, though I do most of my SQL in mySQL. This assumes that your tickets are numerical:

select max(id)+1 from tickets

I suggest you run this statement after the user has submitted input and right before you're going to update the table, so you don't have to worry about simultaneous submissions as much. You can use this value as your id.

You probably should look into subselects, they would allow you to do something like:

insert into auth (id,stuff,stuff2) values((select max(id)+1 from ticke +ts),$stuff1,$stuff2);


In reply to Re: Last ID (OT) by Hero Zzyzzx
in thread Last ID by qball

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.