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Groups > comp.lang.php > #6310
| From | Jerry Stuckle <jstucklex@attglobal.net> |
|---|---|
| Newsgroups | comp.lang.php |
| Subject | Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? |
| Date | 2012-06-12 15:06 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <jr840g$que$2@dont-email.me> (permalink) |
| References | <b3a88b31-765b-4537-adfd-563c4734c66a@googlegroups.com> <jr627b$aqj$1@dont-email.me> <a3acc71e-a388-47ed-97c5-72f4d04c40e5@googlegroups.com> |
On 6/12/2012 2:47 PM, kurtk@pobox.com wrote: >> No, hashes can never guaranteed to be unique. > > I opted to use > > md5(uniqid()); > > to create a unique key. > Still not guaranteed to be unique. Hashes never are. But if you've only got a few thousand items, the chances of a collision are slim. This is why databases have sequence or auto-increment values. -- ================== Remove the "x" from my email address Jerry Stuckle JDS Computer Training Corp. jstucklex@attglobal.net ==================
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Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? "kurtk@pobox.com" <kurtk@pobox.com> - 2012-06-11 17:16 -0700
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? Jerry Stuckle <jstucklex@attglobal.net> - 2012-06-11 20:24 -0400
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? "kurtk@pobox.com" <kurtk@pobox.com> - 2012-06-12 11:47 -0700
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? Jerry Stuckle <jstucklex@attglobal.net> - 2012-06-12 15:06 -0400
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? "Peter H. Coffin" <hellsop@ninehells.com> - 2012-06-12 14:26 -0500
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? Jerry Stuckle <jstucklex@attglobal.net> - 2012-06-12 19:34 -0400
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? Captain Paralytic <paul_lautman@yahoo.com> - 2012-06-13 04:09 -0700
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? Goran <goran@nospam.com> - 2012-06-13 13:40 +0200
Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? Captain Paralytic <paul_lautman@yahoo.com> - 2012-06-19 03:32 -0700
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