what is guid and how i can use?

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hello friends

what is guid??
and how i can use in our application(webapplication)

Posted 14-Sep-11 21:17pm

guptaadeepak

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4 solutions

Solution 1

A Guid is a Global Unique Identifier - which means it is a number that it is very, very very unlikely will be duplicated in your lifetime, let alone application. There are used for Database Id, device Id, software Id - anywahere where you want to uniquely identify an instance of something.

Wiki: http://en.wikipedia.org/wiki/Globally_unique_identifier[^]

Posted 14-Sep-11 21:22pm

OriginalGriff

Solution 2

Hi,

Check this-

http://msdn.microsoft.com/en-us/library/system.guid.aspx[^]

Posted 14-Sep-11 21:26pm

Anup Das Gupta (asteranup)

v2

Solution 4

A Guid is a globally unique identifier and check the below links

http://searchcio-midmarket.techtarget.com/definition/GUID

Posted 14-Sep-11 23:43pm

kumar_k508

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Mehdi Gholam · Accepted Answer · 2011-09-14T21:26:00

Solution 3

Guid is a globally unique identifier or a 16 byte value which is guaranteed to be unique everywhere.

Guid's are mostly used for "identity" columns or values. This saves a round trip to the database as you already know the ID and don't have to wait for the database to tell you what the primary key value was for your insert.

Posted 14-Sep-11 21:26pm

Mehdi Gholam

Comments

AditSheth 15-Sep-11 3:34am

My vote for 5.
its good..
Here is example of how to use guid http://msdn.microsoft.com/en-us/library/system.guid.newguid.aspx

Mehdi Gholam 15-Sep-11 3:42am

Thanks!

Uday P.Singh 15-Sep-11 5:49am

my 5!