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Invoices can entered also some days forward or
back. Users enters invoice date and expected program to generate next sequential
number for this day.
Different users can enter invoices for different
days.
Andrus.
----- Original Message -----
Sent: Saturday, January 15, 2011 9:32
PM
Subject: Re: How to generate
unique invoice numbers foreach day
Why would you do that?
You can always reset the sequence at the end of the day. -- Jorge Godoy < jgodoy@xxxxxxxxx>
On Sat, Jan 15, 2011 at 17:09, Andrus Moor <kobruleht2@xxxxxx> wrote:
There are 365 days in year.
Do you really think pre-creating sequence for
every day for every year is best solution ?
Andrus.
----- Original Message -----
Sent: Saturday, January 15, 2011 8:41
PM
Subject: ***SPAM*** Re: How
to generate unique invoice numbers foreach day
Use a sequence.
--
Jorge Godoy
<jgodoy@xxxxxxxxx>
2011/1/15 Andrus Moor <kobruleht2@xxxxxx>
Invoice numbers have format yymmddn
where
n is sequence number in day staring at 1 for every
day.
command
SELECT COALESCE(MAX(nullif(substring(
substring(tasudok from 7), '^[0-9]*'),'')::int),0)+1
FROM
invoice
where date= ?invoicedate
is used to get next free
invoice number if new invoice is saved.
If multiple invoices are
saved concurrently from different processes, they will probably get same
number.
How to get unique invoice number for some day in 8.1+
when multiple users create new invoices ?
Andrus.
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