Unique Reference Numbers?

Jul 4, 2005

Hey guys,

Hope you can help with this one. I have a form called "frmPatientID", based on a query "qryPatientID" and table "tblPatientID".

I have a field called HospitalNo that is set to "text" and contains the patient's unique hosptal number of 123456, 008777, etc.

However, although the above numbers have to be unique, if the patient is out of the area they get a number of 000000 and this is not unique (i.e. more than one patient can be out of the hospitals area).

So how do I get the database to control this via a rule? (As in everything NOT 000000 needs to be unique). Is it on the form on an AfterUpddate or can I do it in the table?

Many thanks,

Rusty
:D

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Queries :: Adding Sequential Numbers To Generate A Unique Reference Number

Oct 5, 2013

Basically what I have is a database for tracking/logging parcels that arrive to the office. I want to be able to generate a reference number based on the date of arrival: i.e. the reference number should be ddmmyy### where ### is a sequential number. I know that I could just use the primary key's autonumber, for the sequential number but if I do this then the sequence will not restart at 1 on each date and because we receive a lot of parcels the reference number will grow to be too big to print out on the collection slips in just a few months.

two tables (one with the date and staff on duty that day and the other with the parcel's info') with a one to many relationship

I also have a query (Named: FullLog) that picks up the following data from the tables:

Name - Description - Size - TrackingInfo' - Staff - DateReceived - Count

The field named Count is a DCount function that I used to find out the number of times each date is repeated. This is the Expression that I used:

Count: DCount("*","FullLog","DateReceived = " & [DateReceived]) [Note that DateReceived is first converted into a string using CStr()]

This is as far as I have been able to get, I have been looking for weeks for a solution to this problem but I have yet to find one. I don't even know if the DCount function is the correct way of doing it, I did read somewhere that this produces a very slow query.

Effectively what I want to be able to get is something of that resembles the following

DateReceived - ReferenceNo

051013 051013001
051013 051013002
051013 051013003
061013 061013001
061013 061013002
071013 071013001
071013 071013002
071013 071013003
071013 071013004
071013 071013005
081013 081013001
081013 081013002
091013 091013001
101013 101013001

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Nov 10, 2005

Hello,

I am trying to create a unique reference number that includes the default autonumber and another count based on what the user selects from a dropdown (B).

For example, the reference might look something like these examples:

AutoDropdwnADropdwnBCount
001DrinkMocha1
002DrinkEGrey1
003DrinkEspresso1
004DrinkLatte1

005DrinkEGrey2
006DrinkEGrey3
007DrinkEGrey4

008DrinkEspresso2
009DrinkLatte2
010DrinkEspresso3

I will eventually create a unique reference by combining all the data (ie: 004-Drink-Latte-1, 010-Drink-Espresso-3) but it will allow me to number each type of drink in ascending order irrespective of the autonumber (which is the primary key.)

I would appreciate any advice on how to approach this! I am baffled!

Thanks,

dj_T







:eek:

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Mar 30, 2005

Hi there,
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it would be the same with the issues & recommendations. each time i enter a recommendation, if its a new issue the numbering is to start at 1 again.

and for this to happen automatically (if i didnt mention this before).

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There is a seperate form which holds the tenants details and I would like to have a field on that form which would show the same reference number as the report so I can track which report was printed for who.

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I want Access to automatically generate a reference number for a record based on the values in on two other fields for a given record using a form.

The first field is called Operation Number.

The second is Bag Number.

The reference number needs to be in this format: 19C.3.1

Where 19C is the Operation Number, 3 is the bag number, and 1 is automatically generated. Additionally I need the last number --the automatically generated one--to go back to 1 if with each new bag number.

This is kind of like library catalog numbers. Not sure how to do this.

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Nov 21, 2013

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A customer may appear in multiple records (having multiple accounts), but will only receive one notification.

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Hello,

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I know it sounds confusing but I hope someone can help.

Thank!
Elizabeth

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[code]...

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B)
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