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How can I use Globally Unique IDentifier (GUID)
Message
From
04/11/2004 09:28:17
Cetin Basoz
Engineerica Inc.
Izmir, Turkey
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00958008
Message ID:
00958066
Views:
16
>Hi All,
>how can i use which is belows described issue on my tables like newid()
>
>http://support.microsoft.com/support/kb/articles/Q269/3/87.asp
>
>TIA

In your database create a new function say GUID():
function GUID()
Local pGUID,rGUID
Declare Integer UuidCreate In 'RPCRT4.dll' String @pguid
Declare Integer StringFromGUID2 In 'Ole32.dll' ;
  string rguid, String @lpsz, Integer cchMax

pGUID=Replicate(Chr(0),16)
rGUID=Replicate(Chr(0),80)

Return Iif(Inlist(UuidCreate(@pGUID),0,1824),;
  Iif(StringFromGUID2(pGUID,@rGUID,40) # 0, ;
  Strconv(Left(rGUID,76),6), ""),"")
endfunc
Set your PK default value to GUID() - requires c(38). Original value is a 128bits integer which you might store in c(16). Check fox4um.com.
Cetin
Çetin Basöz

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