Pseudo-Random Numbering

Feb 8, 2006

Hi All,

I am a student (studying Sound and Audio) and will soon be running some listening experiments as part of my course. In this, the listeners listen to 1 of a selection of pieces of audio (possibly 4 in total) and answer questions about it. As I now have some experience in Access it seemed the ideal choice to create the software for these tests (I don't know any other programming languages anyway!). So I've recently got to grips with Windows Media Player ActiveX control so all is going good. Herein lies my problem...

The order that the audio is played in (from listenener to listener) needs to be random to prevent any possible biasing effects resulting from ordering. However, I need to ensure that each excerpt gets an equal number of playings, or that this is kept within tight constraints hence using a standard Random Number generator is not ideal. Ideally, if I had four excerpts I would like it if every four occurences each excerpt occurs once.

I can visualize the process in my head I think (it's not complicated) but I have no idea where to begin programming this.

Thus far my idea is that when the form/software opens it generates said number; each number is associated with an excerpt and a Select Case clause opens that audio file in the WMP ActiveX control. When the user is finished the form would eventually refresh for new data and when it gets there a new number is generated (fitting the above constraints). The form would be bound to the main data table so I can collect responses to questions on the same form.

So... any ideas on how to generate this number? I have searched extensively on this forum and the web but no threads seem to offer quite what I'm after.

Thanks a lot in advance (hope that makes sense!),

Bobadopolis

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Pseudo-code

May 8, 2005

hey there..

how do i write , or atlease start writing a "pseudo-code" for this database ???

i have no freaking idea how to write it... but im writing it cuz of my "school project"

im sorry i posted this here.. but i ddnt know which other forum here would be suitable

thanks for your time guys..

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Feb 25, 2008

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Apr 27, 2006

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May 11, 2005

Hi I obviously have a table with records in it sorted in assending order. What I need is to know how to make it add into one of the table fields the number it is in the table. IE

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Mr Jones - 12:30 - 1
Mr Evans - 12:45 - 2

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Mar 13, 2006

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May 5, 2006

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etc.

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Apr 3, 2007

Shall be grateful for clarifications for these two :

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Private Sub Generate_Click()
If IsNull(Me![NumFld]) Then
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End If
Me![NumFld] = Format([NumFld], "00000")

End Sub

It works fine. and when the year is changed, the numbering starts from 1 again. My question is how do I make it to auto generate the number so that the user doesnt have to click the Generate button everytime to get the number. Suggestions please.

2. Is it possible to change this sequential numbering midway i.e. to start from a different number and increment by one?

Grateful for help

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Aug 2, 2007

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RD

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Aug 3, 2007

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May 28, 2005

Hi there
I'm sure that this must be easy, so go gently on an old codger!
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Jan 8, 2008

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Feb 2, 2005

can I make a field that can auto-number which the format that I want??

As I know that there is two format for auto-number
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Aug 30, 2004

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Any help will be greatly appreciated.

Thanks!
Lori

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Sep 28, 2004

How do I get a auto Number to start a 1001?

J

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Oct 13, 2004

Hi I am a newbie on here!!!!! Anyways, now that I got that out of the way.... I need help on my Access Database. Hopefully this isn't a stupid question..... I would like to have one of my cells in my form to automatically count from 1000-9999 when I go to the next form. when it hits 9999, I need it to start over, but not delete any of the previous entries that I have in there. Anyone willing to help me out?

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Jul 11, 2006

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Oct 12, 2005

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Feb 20, 2007

I have a form to enter RMA data. I need to start my numbering at 4000 without using an autonumber. The ID field is text and cannot be changed. The Customer_Order table is a linked table. A letter is going to be added infront of the ID depending what the user chooses from a combobox. The letter(R,A,C) signifies what type of transaction it is. Here is an example -

R4000
A4001
A4002

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Apr 18, 2007

I have the following code for the text field (Before Update)

If IsNull(Me![DyNo]) Then
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End If
Me![DyNo] = Format([DyNo], "00000")

The code starts giving numbers from 00001, 00002, 00003 and so on. The problem was that when I have to search, I have to type the zeros before the number i.e. 00007, 00008 etc. otherwise the search form doesn’t show the relevant record. Ideally, I would like the numbering system to be 1, 2, 3, etc. (without the zeros). I tried changing the code to “0” but with the single “0”, I am unable to insert records beyond No.10. Is there a way to change this code so that I get only 1, 2, 3 etc and not with preceding zeros ? Grateful for help.

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May 18, 2006

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Oct 8, 2007

Not sure as to whether or not this query shoulsd go here or else where? But here is the problem. I have been asked to repair a database that has lost the autonumbering facility. Apparently this was caused by somebody leaving the database open when the network crashed.

Each team can access the database via forms but now when the team responsible for registring new pieces of work tries to enter a new piece of work the autonumber reverts to one already within the database.

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Apr 8, 2008

*I know that this may not be the best way of resolving the problem but this is not the actual problem but my way to simplify of explaining the "problem".

I have a Table with 3 fields.
Field 1 - Auto Number
Field 2 - First Name
Field 3 - Last Name

Initially, the Table was sorted via First Name,
but now, there is a change in requirement to sort by Last Name.

Next requirement is to number (Auto Number) according to the Last Name.

Current Sorted via First Name
Auto Number - First Name - Last Name
1 - Ben - Young
2 - Chuck - Norris
3 - Dennis - Johnson
4 - Ernest - Anderson

If sorted via Last Name
4 - Ernest - Anderson
3 - Dennis - Johnson
2 - Chuck - Norris
1 - Ben - Young

Desired result
to Sorted via Last Name & (Auto Number) via sort.
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1 - Ernest - Anderson
2 - Dennis - Johnson
3 - Chuck - Norris
4 - Ben - Young

Is there a way to do renumber / resort the auto number this?



*I have thousands of records....

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Aug 8, 2005

Hi all,

Simple question (I hope)...

Need to devise a way of updating a field with an ascending sequential number within a group of records of similar type.

e.g.

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13000 Head of Maths 1
13000 School Secretary 1
13000 Head of Maths 2
13000 Head of Maths 3
13000 School Secretary 2
14000 Head of Maths 1

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Any help appreciated.

thanks,
Alex

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Aug 11, 2005

Hello, I have a question. I don't really know much about access, but I am really comforatable with SQL (DB2 and MySQL Programmer). Anyways, I was wondering if there is any way to do the following in SQL.

I have a Students Table that holds the names of students, an applications table that holds different applications, and an offers table that holds offers for the different applications.

The relationships for the tables are :
One Student Has Many Applications, One Application has Many Offers

IE: One Application can have up to three offers attached to it. I have the following query running to get all of the offers for all students in a specified term:

SELECT DISTINCT Offers.tblStudentProgCodeFK, Names.StudentID, Names.FName, Names.LName, (Offers.Code), tblPrograms.ProgName, Names.[Country Of Birth], Offers.[OCAS Number]
FROM qryApplications_Offers AS Offers, [Names], tblPrograms, (SELECT DISTINCT StartingDate, EndingDate FROM StartDates WHERE Term LIKE "*"+[Forms]![frmSelector]![Term]+"*") AS B
WHERE (Names.StudentID = Offers.StudentID AND (tblPrograms.ProgCode = Offers.Code OR Offers.Code=0) )
AND
(Offers.StartDate BETWEEN B.StartingDate AND B.EndingDate);

What I was wondering is if there is any way to add a field in the output that would number the selections. Right now it returns a table like:

tblFK StdID Code
34440 20394 0112
34440 20394 0123
34440 20394 0234
34234 25847 0100
47364 34857 0111
47364 34857 0311

I would like to do something like this:

tblFK StdID Code Choice
34440 20394 0112 0
34440 20394 0123 1
34440 20394 0234 2
34234 25847 0100 0
47364 34857 0111 0
47364 34857 0311 1

Where the choice column would count the choice for that student. Is this even possible? There is no choice number in the Applications or Offers table so I would need to do this in the query....


Any help would be appreciated

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Sequential Numbering Of Query

Nov 19, 2005

I need to generate line numbers for an access query. This query is run via VB code. After it runs, a Dlookup is performed to search for the line number of a particular order detail id. When it finds it, it puts the line number along with other unique order detail information into a text file to be used by a computerized saw that cuts the parts out. Here's a sample query:

DetailID SortID Frmlgnth Stilelgnth OrderID SeqNo
1874864127.12511.9375160004
1874866127.1259.6875160006
1874868127.1258.5160008
1874869127.1255.8125160009
1874867111.8758.8125160007
1874863110.12514.875160003
1874865110.12510.5625160005
1874871221.62514.3751600011
1874872221.62513.81251600012
1874873221.62513.56251600013
1874875221.62511.68751600015
1874876221.62511.6251600016
1874877221.62511.06251600017
1874870221.2516.31251600010
1874874219.12511.751600014
1874878219.12510.251600018
1874879219.1257.1251600019
1874862534.5103.375160002
1874861534.536.875160001

The query is supposed to be sorted with SortID Descending, Frmlgth Ascending, Stilelgth Ascending - in that order. The sort is working fine. However, the Sequential numbering is not. The OrderdetailID has NO bearing on the sort order. Here is my SQL code:

SELECT OrderDetails.OrderDetailID, ProductTypes.ProductTypeSortOrder, OrderDetails.FrameStileLengthActual, OrderDetails.FrameRailLengthActual, OrderDetails.OrderID, (SELECT count(*) FROM OrderDetails As x WHERE x.orderdetailid <= OrderDetails.orderdetailid AND x.orderid = orderdetails.orderid) AS SeqNo
FROM OrderDetails INNER JOIN ProductTypes ON OrderDetails.ProductType = ProductTypes.ProductType
GROUP BY OrderDetails.OrderDetailID, ProductTypes.ProductTypeSortOrder, OrderDetails.FrameStileLengthActual, OrderDetails.FrameRailLengthActual, OrderDetails.OrderID
HAVING (((OrderDetails.OrderID)=[forms]![orders]![orderid]))
ORDER BY ProductTypes.ProductTypeSortOrder, OrderDetails.FrameStileLengthActual DESC , OrderDetails.FrameRailLengthActual DESC;

Does anyone have any suggestions? I'm not too good with SQL, but I can figure it out (I think!). I've searched all the formus, but all the reference I can find regarding this don't work for me in my application...

I greatly appreciate any help you can give!

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