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Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? [message #178397 is a reply to message #178396]

Wed, 13 June 2012 11:40

Goran
Messages: 38
Registered: January 2011

Karma:

Member

On 13.6.2012 13:09, Captain Paralytic wrote:
> On Jun 12, 7:47 pm, "ku...@pobox.com" <ku...@pobox.com> wrote:
>>> No, hashes can never guaranteed to be unique.
>>
>> I opted to use
>>
>> md5(uniqid());
>>
>> to create a unique key.
>
> Why bother hashing it, why not just use the uniqid() value directly?

uniqid() is not truly unique either:D Only truly unique value is the one
generated by DB (if we are talking about DB data).

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[Message index]

		Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: kurtk(at)pobox(dot)com on Tue, 12 June 2012 00:16
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Jerry Stuckle on Tue, 12 June 2012 00:24
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: kurtk(at)pobox(dot)com on Tue, 12 June 2012 18:47
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Jerry Stuckle on Tue, 12 June 2012 19:06
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Peter H. Coffin on Tue, 12 June 2012 19:26
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Jerry Stuckle on Tue, 12 June 2012 23:34
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Captain Paralytic on Wed, 13 June 2012 11:09
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Goran on Wed, 13 June 2012 11:40
		Re: Is spl_object_hash unique in the SQL sense? Can it be used as a unique SQL db column? By: Captain Paralytic on Tue, 19 June 2012 10:32

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