Hi,
I'm not sure where to post this, maybe VBA or Forms would be better, but I think it's fundamentally an index problem, so I'm posting here. I've searched both the net and here, but most of the questions are about preventing duplicate records.
I want to prevent duplicate records but save changes to existing records.
I have a form based on a table that has a 3-field-unique-index (but not the primary index, which is autonumber). I've written a function to check for existing records with the given combination of the three fields, as long as all have data (it bails if any are null). I'm calling the function from BeforeUpdate for each of the textbox controls. I was also calling it from the form's BeforeUpdate, but commented it out as it seemed redundant. I have other code there verifying that the user wants to keep the changes.
I'm trying to save the users from getting all the way to the end before discovering there's a problem. To test it, I added then deleted one character from one of the three relevant fields in an existing record, and bing, up pops my alert that I'm violating the index. Then I can't leave the field, I'm stuck there because I can't save the record.
I want it set up so that other fields in the record can be changed/updated AND so that a new record for the same person can't be entered (a dupe).
Oh, and I'm running into all kinds of problems with acCmdSaveRecord not being available. I feel like an idiot that I haven't been able to make sense of the posts about that. I can just comment it out and let Access save the record when it closes the form. But my bosses really want the users prompted about saving changes.
Any thoughts or suggestions or insights greatly appreciated. I really tried to search this out, so any tips for better searching are also appreciated.
Here's the code for the function:
Public Function CheckForClientDupes()
Dim response As Variant
Dim strFamID, strLName, strFName As String
Dim strFilter As String
If IsNull(Me!FamilyIDNo) Or IsNull(Me!strLastName) Or IsNull(Me!strFirstName) Then
Exit Function
End If
response = MsgBox("There is already a client with this combination of FamilyID, Last and First names in this database. Would you like to Continue Anyway (Yes) or cancel data entry and Erase Your Changes (No)?", vbYesNo, "Duplicate Client Alert")
If response = vbYes Then
' DoCmd.RunCommand acCmdSaveRecord
Else
response = MsgBox("You have chosen to cancel your changes. Your changes will be erased.", vbOKCancel + vbQuestion, "Data Entry Cancelled")
If response = vbOK Then
Me.Undo
Else
Exit Function
End If
End If
End If
I am building a database to capture monthly statistics on a number of items. I want to ensure that users don't enter statistics for the same item for the same reporting period. I found the following instruction, but can't make it work:
It suggests that I create multiple primary keys in the table
When I do it, it comes back with an error: Index or primary key cannot contain a null value.
Can't figure out why I can't create a one to many relationship between two tables:
TableA uses a composite key as its primery key (field1, field2). The table has a unique index comprised of these keys. The index even has a name. The table also doesn't contain any duplicate information, so the fields comprising my Primary Key are unique. The table I'm joining tableA is unpopulated at this time.
Every time I change me Tab Index, for my work order, when I save and restart the Tab Index is in a different order. It seem it changes back to A DEFAULT ORDER.I set the labels to "0" and then set the fields in the Tab order I want.
To prevent duplicate records, I use multiple fields indexes, which worked fine until now. I learned that each "empty" fields are consider unique by Access, so not the best in an index to prevent duplicate records. I managed to have it worked using the default value property to give each "empty" records the same value.
Now my problem is that I have a date field which is optional, but I need to use it as a unique identifier in an index. I could again use a default value, but since it has to be a date, I find it confusing. I would rather have a default value of "No date specified" or "-" or even better, "". Unfortunately none of those works with date fields.
I am trying a to build a slot booking database in which users will be able to book slots (ranging from 1-30) on a particular day for a specific site (location).
When trying to build the relationship between slot in tbl_available and slot in tbl_appointment i get the following error "No unique index found for the referenced field of the primary table" the same error pops up when trying to build a relationship between site in tbl_available and site in tbl_appointment.
I am trying to create a one-to-many relationship between these two tables. I want to be able to access the 3 fields on the [Processors] table within reports based on [AllItems]. [AllItems] is a listing of account activity where the [AccountNumber] repeats. I have every field set as the "Primary Key" on [AllItems] as that is the only way to avoid importing duplicate data. I am getting the error: "no unique index found for the referenced field of the primary table"
I've designed a DB in access which has a BackEnd and 2 FrontEnds (one person insert all the records and the others just keep inserting infos till the process is finished.The DB has 12 tables and we used it for about 6 months without having any trouble but recently (2 weeks ago) i've add 3 new tables and then related them to one table that already exist.
The DB was running smoothly for a week after the changes but last monday (09/15) the "Record is deleted" appeared. I've compacted and repaired an the following errors descriptions appeared:
ErrorCode: -1017 ErrorDescription: Record is deleted. ErrorTable: tblFatura
ErrorCode: -1053 ErrorDescription: Index or primary key cannot contain a Null value. ErrorTable: tblFatura
ErrorCode: -1630 ErrorDescription: You cannot add or change a record because a related record is required in table 'TblExpense'. ErrorTable: tblFatura
I've restored the file via IT using the Backup2 days before the error occurred but after 30 minutes the same error appeared! I dont know if it is related to the new tables that i have add or no?
After a lot of reading and consolidating VBA codes for audit trail.How My Audit Trail Works..A module was made for a function named as "Changes" .Then inserted into before update event of a form where I will do the editing of the records.Then I made a table named as Audit.Inside this table I made all the fields I needed such as:
*AuditRecordId[autonumbered] *FormName[The name of the form for editing] *Index[The record ID of the record being edited] *ControlName[The Field being edited] *DateChanged[Date change was done] *TimeChanged[Time change was done] *PriorInfo[for the old value of data being changed] *NewInfo[For the new value of data changed] *CurrentUser[The user base on log in form that was set to Global into another module] *Reason[The reason for changing for future references]
And Here is the Function Code:
Code:
Option Compare Database Option Explicit Function Changes() Dim db As Database Dim rs As Recordset Dim strSQL As String Dim strCtl As String Dim strReason As String
[code]....
This audit trail function is valid only for one(1) form, due to the limitation of
Code: Screen.ActiveForm.Controls("SUP ID").Value
where "SUP ID" is the primary key of the record being updated/Change, so if there are Five(5) tables that needs audit trail, there will be also Five(5) forms, as well as Five(5) Function Changes namely; Changes(), Changes1(),Changes2(),etc... because all the table do have their own sets of primary Key.
Is there a shortcut, in such a way that the "rs!Index" will automatically return a value, equivalent to the Primary Key/Record Id of the record being updated/change, given that there are different updating forms for each table to be updated?
After I enter data into one field in a record I would like the form to save the record when I move to another field in the same record. It seems that the record is only saved when I exit it entirely. Is there a way to save a record when moving between fields in that record? Can this be done without using an Event Procedure for each field?
I am working on a database and i have notice after making a form that when i enter a record using a form if i enter incomplete data on the form access automatically save that record and generate a id for that record.
For example I have a table that contain
StudentID,StdName,FatherName,DOB,Adress,Phone
And I have created a form for that table that also containing these fields.
Here I want to do that on the form I want a "Save" button , and the purpose of this button that when I click on this button then MS Access Save the record and then generate the ID for that record and if i close my form without pressing "SAVE" button access do not save that incomplete record.
ClientsID (PK) blah blah Information and Referral (a check box) blah blah blah blah
ClientIR (the form that opens up when I & R is checked)
IR ID (PK) ClientsID (FK to the above form) Requests (a lookup referencing to IRCategory)
The code is set up so when the I R box is checked, form will open, and unchecking it will delete the I R record of that Client.
The problem is when the IR Box is already open, the request has been selected, I cannot save it as Access says a record is required in the Clients form. There are only two buttons, one goes on to next requests (one client can have more than one requests), other saves and closes.
The Client form is already coded so it will save the Client's record before opening the IR Form, and either button will save the IR record as well.
I had referential intergrity turned on. Turning it off only gave me weird results (I was able to input records, but Access didn't autofill the ClientID in the IR records, and looking at Clients returns a blank IR record)
I have a query which displays two fields: client ID and order type. I want to be able to display the client only once per order type. I tried to use GROUP BY order type but that gives me a missing expression message. I also thought of using UNIQUE as YES in qry properties but I'm not sure as to which row that property applies (all of them?). What is the best way to display a unique client in one row and order type in the other? So for example for order type "CASH" I wil then have a list of unique individualIDs.
This is probably dead simple, but I am brain dead today.
I have two tables: Requests with fields (ID, Cust, Amount, Ref, Date)
and
Actuals with fiels (ID, Cust, Amount, Ref, Date)
Now, if Requests.Ref is null, then update Requests.Ref = Actuals.Ref and Requests.Date = Actuals.Date if and only if there is only one record in Requests and only one record in Actuals where Requests.Cust = Actuals.Cust and Requests.Amount = Actuals.Amount.
Currently, I am just doing an inner join between the two tables, but if there are two requests with a given cust/Amount, but only one Actual, then both Requests will get the same Actual Ref and Date.
I'd like to extract just one TestPos record (TestPos = 1) per Patient ID. And I always want to select the record with the earliest date. So the result would be:
I can do this but it requires 3 queries: a SELECT query where TestPos = 1, a GROUP BY PatientID query and MIN(VisitDate) to get the desired record per patient, and then another query that links the two so I can get the additional variables (e.g., Complaint).
Is there a way to do this without using 3 queries? Seems inefficient.
Hi I have a very simple table, with say 5 fields (all text). There is only 1 table. The first field is name, and I want to enforce its uniqness across all other table.name values. I am completely new to Access database and am not sure how to do this. Any help would be greatly appreciated.
I am using a software drawing program that intelligently link information from a drawing to a database and vice versa. I have many tables and queries that I have created over time that enable auto populating of tables, creation of tables and so on. All of which enable me with tabular documents for ordering purposes.
The problem I currently have is: - I want to create a table that looks at an existing table, analysis various fields for duplicate information and then adds one record to a new table. This is to enable me to create a spares list based on the entire list.
I have a full valve list with various items, some duplicates some not. I am required to produce a spares list that considers only one of each type.
Currently I have an Access form which produces a new unique number to identify each new record created. To do this I use the unique ID autonumber from a table to identify the new records. I would like to change from this simple number to the the above format per example 1. The four digits to the left of the hyphen would always be the current year and digits to the right of the hyphen would be the unique auto incrementing numbers such as from my table. I need the year to auto increment by 1 each September 30th (new business year) and I need the numbers to the right to auto reset to 1 to start uniquely identifying records again for the new incremented year. As each record is closed I need the number to be written as a single entity in the new format to my database.
I have a database in Excel that contains farmers who can be identified by a Unique identifier: MZ-01-0001. The registration details for these farmers are not always up to date. Now when I try to append the data for the farmer with MZ-01-0001; with the primary key set on the Unique identifier, Access does not want to do it since there is already a record in the system. When I remove the primary key it doubles the record, which is also not what I want. So I am wondering what I need to do to append the record while keeping the primary key intact.
