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sid data type

Posted on 2010-08-26
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Last Modified: 2012-05-10
what is the benefit for SQL Server to name SID in varbinary instead of varchar?

thanks
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Question by:anushahanna
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6 Comments
 
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Mohit Vijay earned 2000 total points
ID: 33534722
It helps to manage uniqueness id when you have unlimited number of user. Its something bigger then GUID.
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by:Mohit Vijay
ID: 33534748
Biggest benefit is:

When you are moving SQL Server logins from one server to another and you want the logins to have the same SID between servers
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Author Comment

by:anushahanna
ID: 33535011
>>It helps to manage uniqueness id when you have unlimited number of user

varchar can take care of this, too, right? especially with 85 characters. (credit card is only 16 digits, and we trust it!)
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Expert Comment

by:Mohit Vijay
ID: 33535028
You are correct, but SID is more secure.
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by:Mohit Vijay
Mohit Vijay earned 2000 total points
ID: 33535041
If you remember, initially table use int as key, after that bigint (autonumber), after that it increase the limit and become GUID etc.. similarly now for biggest database SID is secured and manageable. Isnt it?
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Author Comment

by:anushahanna
ID: 33535075
OK. Thanks for that VjSoft. That makes sense, in terms of more bigger IDs.

Thanks again.
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