Why can I have only one Identity column for a table in SQL SERVER

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Why can I have only one Identity column for a table in SQL SERVER
I tried at many sites but didn't get the perfect answer,
Can any one give me the actual reason for that restriction please

Posted 17-Dec-14 0:12am

K.Y.S.Phaneendra

Updated 17-Dec-14 4:56am

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Tomas Takac 17-Dec-14 6:35am

Good question. I don't know the answer but since 2012 you can use sequences[^] to overcome the limitation.

K.Y.S.Phaneendra 17-Dec-14 6:37am

ok thank you..

Kornfeld Eliyahu Peter 17-Dec-14 6:40am

It never explained by Microsoft, but I believe it is because identity bounded to scope and a table has only one scope...

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KM Perumal · Answer 1 · 2014-12-17T01:21:00

Solution 1

http://technet.microsoft.com/en-in/library/aa933196(v=sql.80).aspx[^]

Posted 17-Dec-14 1:21am

KM Perumal

Comments

Tomas Takac 17-Dec-14 7:30am

Pardon me but how does this answer the question? The text doesn't even state that you may have only one identity per table.

K.Y.S.Phaneendra 17-Dec-14 7:44am

I am sorry, that link doesn't give the reason.
Any way thank you for that you wanted to help me..

KM Perumal 17-Dec-14 7:50am

:)

CHill60 17-Dec-14 8:05am

Doesn't answer the question and has removed the post from the list of unanswered questions