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Convert c(16) hex to Integer
Message
 
 
À
20/11/2008 12:59:20
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows XP SP2
Database:
MS SQL Server
Divers
Thread ID:
01363246
Message ID:
01363314
Vues:
14
Hi Charles,

Sorry for my previous message. I'm very interested in your routine of converting these keys to SQL Server GUID fields. Can you please post it or e-mail me?

Thanks in advance.

>I'm considering doing a major conversion in data structures on an app I am porting from VFP/DBF to .NET/SQL. The .NET framework I use (Strataframe) loves int keys. UIDs just involve a little more tweaking. The app I am converted currently uses pseudo-guids
>( guid(16) ala the old Rick Strahl algorithm) for every primary and foreign key - and there are a *lot* of them. VFP/VFE loves them. My current VFP-DBF -> SQL conversion routines convert these guid(16)s to guid(36) and then to UID
>
>current keys look like this :
>
>8298499C6C924F97
>3EBF95B8F4FE4681
>591BB961D6194082
>
>
>I am math impaired, but I believe the guid(16) is a valid Hex number. (actually, at one point I had DTS reading them as binary(16) and they converted to UIDs but in some revision of OLEDBVFP that stopped working )
>
>Ideally I would need an algorithm that would convert that to an int16 (is that what identity fields are in sql?) If it could be reduced to something smaller, just to give me more wiggle room in setting the seed for future numbers, great.
>
>It would be a one-time conversion, just need to make sure all the pk-fk relations remain intact.
>
>thoughts?
If it's not broken, fix it until it is.


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