Add a IDENTITY to a column in SQL SERVER 2008 - 


create table stud( student_id int primary key, student_name varchar(30), student_surname varchar(12), student_initial varchar(10))

i had created table stud. want add identity student_id column using alter query

alter table stud alter column student_id int identity

i error

incorrect syntax near keyword 'identity'.

alter table mytable   add id int identity(1,1) not null

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