Serial Number with each table row

ketannsharma · March 15th, 2007, 12:17 AM

I want to view [u]Sr. No.</u> along with table row. As in Oracle we have rownum variable that we use to print Sr. No.
In Oracle ie: "Select RowNum, EmpName, City from Employee"
In Access : ???????????
Thanks,
Ketan N Sharma

mmcdonal · March 15th, 2007, 06:40 AM

You can use the autonumber data type and create a primary key, and it works like the rownum in Oracle, or identity column in SQL.

So tblEmployee:
EmployeeID - autonumber
EmpFName - text
EmpLName - text
City - text

SELECT EmployeeID, EmpFName, EmpLName, City
FROM tblEmployee
...

HTH

mmcdonal

ketannsharma · March 15th, 2007, 10:26 PM

Hi,
I want to start Sr. No. from 1. Using Autonumber field It is not neccessary to that it will start from 1. Again When we delete row then autonumber field get affected. When we use WhERE condition in SQL then also it not start from 1.
so, I cannot use autonumber.
Any other Solution?
Regards,
Ketan N Sharma

Quote:

quote:Originally posted by mmcdonal
You can use the autonumber data type and create a primary key, and it works like the rownum in Oracle, or identity column in SQL.

So tblEmployee:
EmployeeID - autonumber
EmpFName - text
EmpLName - text
City - text

SELECT EmployeeID, EmpFName, EmpLName, City
FROM tblEmployee
...

HTH

mmcdonal

mmcdonal · March 16th, 2007, 06:44 AM

I am not sure why you would want all your downstream serial numbers to change when you delete one record upstream.

If you must, do not store the number field in the database, but generate it at runtime when you open a form or report.

Why do you want your serial numbers to change when one is deleted? Potentially a SN can change once a minute for days at a time given the right activity. What if someone is in the middle of processing a transaction and their SN is reordered?

I would suggest NOT deleting the records, but marking them inactive, so that the other SN's do not change if you have to use this scheme.

mmcdonal