Subject | RE: [firebird-support] Re: Primary Keys - [was] Database File Size |
---|---|
Author | Alan McDonald |
Post date | 2004-05-25T14:25:24Z |
> And, here is some documentation from Microsoft's 2003 Platform SDK:But this does not apply to FB server created UUIDs, I assume, since the wiz
>
> [Start quote...]
> In Windows NT 4.0, Windows 95, DCOM release, and Windows 98,
> UuidCreate returns RPC_S_UUID_LOCAL_ONLY when the originating computer
> does not have an ethernet/token ring (IEEE 802.x) address. In this
> case, the generated UUID is a valid identifier, and is guaranteed to
> be unique among all UUIDs generated on the computer. However, the
> possibility exists that another computer without an ethernet/token
> ring address generated the identical UUID. Therefore you should never
> use this UUID to identify an object that is not strictly local to your
> computer. Computers with ethernet/token ring addresses generate UUIDs
> that are guaranteed to be globally unique.
> [...End quote]
>
> --
> Best regards,
> Daniel Rail
bang UUID UDF generator provided by Ian Newby does not rely on the
UuidCreate function.. Does it?
Alan