Random Generate Into A Null Field...
Apr 19, 2005
First off, I want to see if this is possible. It seeems like it should be but sometimes I dream bigger then things allow.
OK... I have a form made in Access. There is a text field that I would like to be able to do the following:
If the field is null, a number will be randomly generated betwen teh values of 1 and 1500.
If the field is not null (we entered a number between 1 and 1500), then that field would be set to that number.
The field CANNOT have the same number given (we will only have 1500 records and want them randomly generated a number unless otherwise specified).
Can this be done? I made my attempt but it keeps failing no matter how I try and fix and such. I guess this is what happend when you haven't used Visual Basic in about 4 years.
PLEASE HELP! Thanks In Advace,
Tara (aka Bay)
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Jun 10, 2014
How can I generate a random string to a text field from a button. I
Say I have a form..
On the form I have:
X1 Button (BTN-Generate-Password)
X1 Text Field (TF-Generated-Password)
How can I make it so when the button is clicked a random string will appear in the text box
HTML Code:
Private Sub BTN-Generate-Password_Click()
(What Do I put here?) (Will it populate the Text Field?)
End Sub
- 9 Characters
- Upper and Lower Case
- Numeric & Alpha Numeric
- These Characters (!@#$%)
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Feb 24, 2006
is there anyway to have the database autogenerate a random 8 digit reference number for each record.. this of course must be unique..
maybe something like
7C7CYU99, or HJUHU889... im sure you get the picture.
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Jan 30, 2005
Hi All,
I'm designing this database, in which, I have to give each record a unique random (or sequance) number of 5 digits, giving that the first digit must be retrived from another field.
Please Help, I need this ASAP!
Any help will be very much appreciated!
Thanks,
CS.
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Jan 30, 2005
Hi All,
I'm designing this database, in which, I have to give each record a unique random (or sequance) number of 5 digits, giving that the first digit must be retrived from another field.
Please Help, I need this ASAP!
Any help will be very much appreciated!
Thanks,
CS.
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Sep 6, 2013
I am using a API to generate a random / unique directory. This an API form a 32-bits environment.
I know that you can still use it when declaring it with PtrSafe
This is the code I am using:
Option Compare Database
Private Declare Function GetTempPath Lib "kernel32" Alias "GetTempPathA" (ByVal nBufferLength As Long, ByVal lpBuffer As String) As Long
Private Declare Function GetTempFileName Lib "kernel32" Alias "GetTempFileNameA" (ByVal lpszPath As String, ByVal lpPrefixString As String, ByVal wUnique As Long, ByVal lpTempFileName As String) As Long
[Code] .....
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Sep 28, 2006
Hi.
I have major report due within hours.
I need to add a field to existing table that will be a 9 digit number, non duoplicating or - to take an existing field of 9 digits and allow it's values to change to random or incremental, non-duplicate numbers of 9 digits. I already have an autonumber field I must keep.
Russ
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Mar 17, 2014
I am working on a form and need it to be able to generate a random number to use as an invoice number. The only parameters i need it to meet is that it is at least 5 digits in length. I was hoping i could use a button to make the number generate in a separate box.
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Sep 2, 2013
i have these code to auto generate member number but the highlighted line generate error 94 - invalid use of NULL:
Private Sub cmdGetNumb_Click()
'On click of button a new Member Number is generated and
'focus is moved to tFName field.
Me![nMembNum] = NewMembNum()
Me![tFName].SetFocus
'Prevent accidental click
Me![cmdGetNumb].Enabled = False
[Code] ....
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Nov 16, 2007
I think the title pretty much sums it up....
I have a query where data is first sorted by user input; first field's criteria: [fieldname], then by another field's criteria: Is Null.
I know there are records containing null values in the second field, as I have run a select query with the criteria: Like "*", to make sure they are null, and not zero-length-strings.
The query is refusing to return any results...
Any ideas?
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Nov 3, 2004
I have a database that I took over for a small group (it has about 400 records), and they want to add a field for "Member ID", to use for member badges and whatnot.
A friend tried to help me by suggesting the "Change the starting value of an incrementing AutoNumber field" from the Access Help File, but I don't necessarily want incremental numbers, I just want a string of perhaps 8 numbers in no particular order, and obviously, unique to each record. I also don't understand how I can get that to work in pre-existing records...
So, what I'm wanting, in a snapshot, is:
83928475 John Smith 123 Any St
93827221 Mary Jones 678 Market St
19182734 Elvis Presley Graceland
etc...
I was thinking that perhaps a formula could be created in a query? Heck I don't know!
I only know enough about Access to be dangerous, so I appreciate anyone's help!
THANKS!
Matt
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Jun 21, 2013
Have a table (tblDailyResults) with 4 fields (ID,TestName,Result,TestDate). It contains a snapshot of about 1,000 records. All fields have data except "Result", which is null. I also have a table (tblResults) with 3 fields (ID,TestName,Result), it contains about 100,000 Records of historical results. What I need to do is Update the "Result" field in "tblDailyResults" with a randomly select value from tblResults where the two testname match.
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Aug 3, 2012
On an Access database, I would like an ID number to be generated randomly.
This ID number needs to be within the range of 11000 - 99999.
How is this possible?
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Jan 2, 2015
I'm trying to create a query that generates random numbers for each record, sorts them by that field, then selects the top record. This should randomize the record being selected.
I can use the Rnd([ID]) function which does appear to generate a random number. Problem is that each time I exit the program and come back in, it always selects the same record. When I remove the Top = 1, to show all the records, every row does have a different random number but it does not appear to be sorting by this field.
If I run the query, here is the number I get: 0.98609316349029
Exit the program, restart, and run the query again: 0.98609316349029
If I refresh the query, the second and third time does appear to be random but the first result is always the same. how to generate truly random numbers?
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Sep 29, 2004
Hello Again,
I have an ID field that I want a custom ID generated based on Name, Phone Number & Record Number.
Here is the code I'm currently using....
'User moved out of supplier name field
Public Sub SupplierName_LostFocus()
If Me.NewRecord = True Then 'If user adidng new supplier
SupplierNameTemp = UCase$(Left$(SupplierName, 3)) 'Store 3 characters from supplier name
End If
nd Sub
'User moved out of suppliers phone number field
Public Sub SupplierPhoneNo_LostFocus()
If Me.NewRecord Then 'If adding a new supplier
supplierPhoneNoTemp = UCase$(Right$(SupplierPhoneNo, 4)) 'Get 4 right characters of phone #
End If
End Sub
I then have a procedure which combines the two strings such as....
Private Sub GenerateSupplierId()
SupplierID=SupplierNameTemp+SupplierPhoneNoTemp
End Sub
The problem is when I check the SupplierPhoneNoTemp & the SupplierNameTemp within the GenerateSupplierID procedure. The contain no information meaning the SupplierID will have nothing as well.
However, when I check SupplierNameTemp within the Public Sub SupplierName_LostFocus() & SupplierPhoneNoTemp within Public Sub SupplierPhoneNo_LostFocus(). They both contain the proper info. It seems they loose this information when moving outside their procedures.
Does anyone know why this would happen & how I could fix this?
Thanks.
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Oct 9, 2015
I've got a form where I want to add an employee and I have three fields (EmpFirstName), (EmpLastName), and (EmpCode).They all have their own control source from a table but what I want is EmpCode to automatically fill in after they type a first name and last name and not be editable. Smith, John and the empcode will fill in with smijo (3 of last and 2 of first). I understand this is probably completed using Expression Builder (not sure on the command) and how do I make it so Empcode still receives the data entered??
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May 27, 2014
Is it possible to run a SQL command to update a field within a table with random numbers?
More specifically - random long integers linking back to an ID (autonumber) field in another table?
Background to this is, I have multiple static data tables related to each other by long integer identifiers (autonumbers)
The structure is fine but I haven't been provided with the actual data yet - but for development purposes, I need to work on other functionality which requires that this data be present.
So I want to fill my table with dummy data such that I can go off and work on the remaining functionality, but then just go back and clear it all out once I get the actual data.
I have one 'main' static table, which links back to other tables, which I have already populated with dummy static (i.e. company names, locations etc) Now I want to go into my main table and populate those fields in each record with a random ID. I don't mind doing this field-by-field (there's only a handful) but I've a lot of records in there (~1000) so I'd rather not do this record-by-record.
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Jan 20, 2008
Okay I have a report (rptHorneOstbergQuestionnaire) that is based on a query (qryrptHorneOstbergQuestionnaire). In the report I have a total (HOTotal) which is the result of an expression created in the qry. Based on this result I would like to generate text in a text field (HOType) that is found in the same report.
Basically if the field HOTOtal shows any vaue between:
16 and 30 then I want the unbound text field to show the text Definitely evening typw and so on ...(see case statement below)
I thought I could do a case statement on report open but I am getting an error that my expression contains no value.
Here is the case statement
Private Sub Report_Open(Cancel As Integer)
Select Case Me.HOTotal
Case 16 To 30
Me.HOType.Value = "Definitely evening type"
Case 31 To 41
Me.HOType.Value = "Moderately evening type"
Case 42 To 58
Me.HOType.Value = "Neither type"
Case 59 To 69
Me.HOType.Value = "Moderately morning type"
Case Else
Me.HOType.Value = "Definitely morning type"
End Select
End Sub
What else can I do?
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Jul 10, 2012
I have
Table called "Products"
Field 1= "Product ID" which is a text field (PK) but numbers are used (ie 1 -20)
Field 2= Products -showing our list of 20 products
When I enter a new product, currently I have to look in the table to find the last ID used then use the next one available. I have created a form to be used for data entry to enter new products
What I am trying to do is :- 1, have the form open at data entry level but still able to scroll and see all records and 2, Have the form auto generate the next number available. For example, I have 20 products entered so when the form opens to enter a new product, the ID is automatically at number 21. I know absol nothing about coding. I have looked at other suggestions on the forum incl the DMAX +1 and having tried and not worked, I wondered if its because the field is a text field or I am trying to insert the code in the wrong place.
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Aug 29, 2014
I Have a table with 15000 entries. This table lists components we use. This table is used to generate queries/forms. I have been asked to add a hyperlink to this table to link to a drawing of the component. All the drawings are in PDF and in the same folder. I am looking for a way to automatically update the hyperlink fields all at once. The Hyperlink will be in the format of servershareddrawings12345.pdfwhere 12345 is the component name from the table.
But there are a few small problems with the component names.
1. If the component begins with a B- . The drawing name will be all the characters except when there is a second dash in the component. So if the component is B-12345-678 the drawing name will only be B-12345.
2. If The component begins with AB, The drawing will be the first 5 characters regardless of what follows, e.g. AB123.
3. Finally for all other components the full component name will be the drawing name.
Putting the naming to one side, how to go about auto generating the hyperlink. I have posted this in the table section, but maybe this should be in another section like queries or VBA.
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Jul 10, 2012
I have
Table called "Products"
Field 1= "Product ID" which is a text field (PK) but numbers are used (ie 1 -20)
Field 2= Products -showing our list of 20 products
When I enter a new product, currently I have to look in the table to find the last ID used then use the next one available. I have created a form to be used for data entry to enter new products
What I am trying to do is :- 1, have the form open at data entry level but still able to scroll and see all records and 2, Have the form auto generate the next number available. For example, I have 20 products entered so when the form opens to enter a new product, the ID is automatically at number 21.
I wondered if its because the field is a text field or I am trying to insert the code in the wrong place.
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Dec 10, 2013
Autofill text field using combo box selectionHello,
I'm trying to autofill a field on a form using MS-Access 2010 Web version sharepoint using macros without coding.
The form has an existing Combo Box field called Segment, using the row sources "REW", "WTT", "DBM".
A user begins filling out the form and eventually selects the Combo Box for Segment and selects any one of the segment no Multiple selection
There is another text field, which is actually alpha-numeric, called Job_No. I want this to autofill based on their Segment selection, using this format:
REW-YYMMDD-TTTT, or REW-131210-20001 for example, for today with the time displayed as military time and last Job No.(20001) for REW and Also for WTT (30001) as starting number.
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Aug 12, 2015
How can I put a field in my query, with all data hourly incremented between 01 January 2015 to 31 December 2015.
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Jun 10, 2013
Trying to run a query using criteria to populate the query by looking at information from a field on a form, if from is closed I need that criteria to look at the table and return all date in table.
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Jul 10, 2005
Is there an expression in a query, that if want to say, if one field is not null make another field say true?
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Oct 15, 2005
I have a downtime database that tracks units down, time on, reason down, etc. When a unit goes down, I log the name of the unit and the time down in separate fields. When a unit goes back on line, I log the time on and the reason in separate fields. All this is in a form. When the unit goes on line, I want the user to be forced to enter a reason only after he has entered a time on, not before. The “reason” field must be left blank until the unit is on. How do I do that? I have searched the forum for this and have not found leaving a field blank based on another field’s data. I will supply whatever you need to help me. Thank you.
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