Hi,
I'm working with Guids as the primary key of some of my tables. In my code,
I'm working with those Guids. Now I was wondering what is the best way to
work with Guids (in terms of performance, memory usage, etc)? Should I use
the datatype Guid or should I convert them to strings and then just work
with the string representation?
The majority of the processing I do with these Guids is comparing a Guid
with another Guid. Right now, I use the Guid datatype and I pass Guids as
parameters to functions, but maybe it's better to use strings.
Any ideas?
Thanks,
Jeffry
3  13096 
Well, as far as perf, a GUID is a 16-byte structure. If you represent it as
a string, then it'll use more memory (each byte will become 2 characters,
and each character is 2 bytes) -- 4 times more.
-mike
MVP
"Jeffry van de Vuurst" <reply.to@newsgroup> wrote in message
news:ea*************@TK2MSFTNGP10.phx.gbl... Hi,
I'm working with Guids as the primary key of some of my tables. In my
code, I'm working with those Guids. Now I was wondering what is the best way to
work with Guids (in terms of performance, memory usage, etc)? Should I use
the datatype Guid or should I convert them to strings and then just work
with the string representation?
The majority of the processing I do with these Guids is comparing a Guid
with another Guid. Right now, I use the Guid datatype and I pass Guids as
parameters to functions, but maybe it's better to use strings.
Any ideas?
Thanks,
Jeffry
Ok, thanks for the info. I guess I'll stick with Guids.
Jeffry
"Michael Giagnocavo [MVP]" <mg*******@Atrevido.net> wrote in message
news:#t*************@TK2MSFTNGP10.phx.gbl... Well, as far as perf, a GUID is a 16-byte structure. If you represent it
as a string, then it'll use more memory (each byte will become 2 characters,
and each character is 2 bytes) -- 4 times more.
-mike
MVP
"Jeffry van de Vuurst" <reply.to@newsgroup> wrote in message
news:ea*************@TK2MSFTNGP10.phx.gbl... Hi,
I'm working with Guids as the primary key of some of my tables. In my
code, I'm working with those Guids. Now I was wondering what is the best way
to work with Guids (in terms of performance, memory usage, etc)? Should I
use the datatype Guid or should I convert them to strings and then just work
with the string representation?
The majority of the processing I do with these Guids is comparing a Guid
with another Guid. Right now, I use the Guid datatype and I pass Guids
as parameters to functions, but maybe it's better to use strings.
Any ideas?
Thanks,
Jeffry
You probably want to stick to the GUID class for the previous reason stated,
and also, you will probably be working with the SQL uniqueidentifier
data-type. A GUID->uniqueidentifier is a pretty simple cast, opposed to
casting a string back to a GUID, then casting again to a uniqueidentifier.
"Jeffry van de Vuurst" <reply.to@newsgroup> wrote in message
news:uF**************@tk2msftngp13.phx.gbl... Ok, thanks for the info. I guess I'll stick with Guids.
Jeffry
"Michael Giagnocavo [MVP]" <mg*******@Atrevido.net> wrote in message
news:#t*************@TK2MSFTNGP10.phx.gbl... Well, as far as perf, a GUID is a 16-byte structure. If you represent
it as a string, then it'll use more memory (each byte will become 2
characters, and each character is 2 bytes) -- 4 times more.
-mike
MVP
"Jeffry van de Vuurst" <reply.to@newsgroup> wrote in message
news:ea*************@TK2MSFTNGP10.phx.gbl... Hi,
I'm working with Guids as the primary key of some of my tables. In my
code, I'm working with those Guids. Now I was wondering what is the best way
to work with Guids (in terms of performance, memory usage, etc)? Should I use the datatype Guid or should I convert them to strings and then just
work with the string representation?
The majority of the processing I do with these Guids is comparing a
Guid with another Guid. Right now, I use the Guid datatype and I pass Guids as parameters to functions, but maybe it's better to use strings.
Any ideas?
Thanks,
Jeffry
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