Access 2003 autonumber Define My Own Kindly Guide ,

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My Qustion..

Table Name
J_voucher

Fields are:
Voucher Number, Date , Narration , Debit , Credit

Autonumber on Voucher Number:
I want Autonumber Like That JV-TodayDate-000AutoNumber

Posted 23-Mar-11 19:05pm

Muhammad Aamir SumSum

Updated 23-Mar-11 20:53pm

v3

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OriginalGriff · Accepted Answer · 2011-03-23T22:08:00

Access provides autonumber: it is called an "autoNumber" field, surprise, surprise. Also unsurprisingly, it is numeric only...

I would keep the Voucher code separate: The Voucher number is the Autonumber field, the Date field is the TodayDate, and build the voucher code from that using string.Format:

string voucherCode = string.Format("JV-{0}-000{1}", date.ToString("yyyy-MM-dd"),voucherNumber);

I would also recommend using a Guid as the PK field if you will need to retrieve the information once you have created it.

I would also recommend making the voucher code a little more complex: If I received a voucher with that format, I might be tempted to try the same date, but one digit less / more if I was a naughty type who wanted to cheat you...