How to make column value auto incremented starting from 1 without use identity?

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SQL-Server-2008R2

Hello to everyone.
I have a problem, I am copying data from one table to another table and i want one of my column value should be start from 1 and incremented in every row inserted in copying table.
i have use identity property on another column so i can't use it again.
I am using subquery.
This is my code:

SQL

insert into tbExaminer (iStudentId_FK, iSubjectId_FK, iTokenID_FK,/*this column should be auto incr ->>>*/ iQno_FK, sQuestion, sAns1, sAns2, sAns3, sAns4, iRightAns, iMarks, sType, dOnDated, iResponse)
select 1, 1, 1, 'what to do here to get incr value', sQuestion, sAns1, sAns2, sAns3, sAns4, iRightAns, iMarks, sType, CONVERT(VARCHAR(10), GETDATE(), 105), 0 from tbQuestionBank
where iSubjectIdFK = 1

Here value of iQno_FK column i want to incremented value..
please help to sort this..
Thanks in advance

Posted 4-May-14 20:45pm

www-sahilv

Updated 4-May-14 20:46pm

v2

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www-sahilv 5-May-14 4:08am

Thaks to all to provide their valuable responses.

3 solutions

Solution 2

You can use identity column any time, there is no issue in that. Only do not make it primary key if it primary key already there in your table

create table #tblStudent
(
    ID int primary key identity(1,1),
    Number UNIQUEIDENTIFIER DEFAULT NEWID(),
    Name nvarchar(50)
)

Posted 4-May-14 20:54pm

Darshan.Pa

Updated 4-May-14 22:17pm

v2

Comments

www-sahilv 5-May-14 4:02am

I tried but i got the warning that only one identity column allowed in table.

Solution 1

If it a bulk insert you can use ROW_NUMBER[^] function in your select statement to get a running number...
For single insert you may use a sub-query like (select max(iQno_FK) + 1 from [table]) as the value...

Posted 4-May-14 20:52pm

Kornfeld Eliyahu Peter

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_Asif_ · Accepted Answer · 2014-05-04T20:57:00

Try this.

SQL

insert into tbExaminer (iStudentId_FK, iSubjectId_FK, iTokenID_FK,/*this column should be auto incr ->>>*/ iQno_FK, sQuestion, sAns1, sAns2, sAns3, sAns4, iRightAns, iMarks, sType, dOnDated, iResponse)
select 1, 1, 1, ROW_NUMBER() OVER(ORDER BY GETDATE()), sQuestion, sAns1, sAns2, sAns3, sAns4, iRightAns, iMarks, sType, CONVERT(VARCHAR(10), GETDATE(), 105), 0 from tbQuestionBank
where iSubjectIdFK = 1